W DOC AIRBUS | AMM A320F

ANALYZERS ((131-9(A))) - DESCRIPTION AND OPERATION

** ON A/C NOT FOR ALL
1. General
The Electronic Control Box (ECB) examines the APU faults and the APU life (performance) data. Software algorithms within the ECB monitor the faults and the life data for indication and memorization.
The analysis of the APU data is divided into two main parts:
  • APU life data,
  • APU fault data.
The APU life data is used to monitor the health and usage statistic of the APU. The APU fault data is used to support trouble shooting on the APU.
The results of the APU data analysis are available on the Multipurpose Control and Display Unit (MCDU) via the Centralized Fault Data System (CFDS).
** ON A/C NOT FOR ALL
2. Component Location
F Analyzers - Component Location ** ON A/C NOT FOR ALL
FIN FUNCTIONAL
DESIGNATION		 PANEL ZONE ACCESS
DOOR		 ATA REF
** ON A/C NOT FOR ALL
59KD ELECTRONIC CONTROL BOX 152 49-61-34
** ON A/C NOT FOR ALL
3. System Description
F Analyzers - Block Diagram ** ON A/C NOT FOR ALL
A. APU Life Data
The APU life data is associated physically with the related APU by the Data Memory Module (DMM). The DMM is a nonvolatile memory device and is installed on the APU. It keeps the data about the APU health monitoring and the APU life usage. The DMM uses an Electrical Erasable Read-only-Memory (EEPROM) to store the information.
During the APU start procedure, the ECB reads the actual DMM data and stores it in its memory. The data will be updated in the ECB during the APU operation. During the APU shutdown (engine rolldown) the ECB transmits the updated data to the DMM and the old database is enlarged with the new data.
The database of the DMM stores 126 different parameters, such as:
  • APU serial and model number,
  • APU operating hours and starts,
  • APU accumulated HOT time,
  • APU accumulated shutdowns.
    etc.
The DMM provides this data via the ARINC 429 data bus to the CFDS. Access to this data is through the 'SERVICE DATA' page of the APU menu.
B. APU Fault Data
The Built-In Test Equipment (BITE) software of the ECB gives:
  • Fault detection,
  • Equipment protection,
  • Failure information.
The BITE uses input from the same hardware devices and sensors already used for APU control and operation. This ensures a safe and reliable operation of the APU. When the BITE detects a failed device or an operational fault, the ECB stores the failure in the BITE fault memory.
The BITE of the ECB operates in three modes:
  • Power Up Test (PUT),
  • In Operation Test (IOT),
  • Self Test (SET).
  • Ground Scanning
PUT
The PUT is an automatic system self-test which is initiated when the ECB has finished its initialization and the APU speed (N) is less than 7 %rpm.
IOT
The IOT tests automatically those LRUs which have to be tested during APU operation.
SET
The SET is similar to the PUT, but has to be called up via a CFDS menu page.

Dependant on the faults the ECB either prevents an APU start or shuts down the APU or operates the APU with certain default operating values. The CFDS gives access to the fault data via the MCDU.
** ON A/C NOT FOR ALL
4. Power Supply
(Ref. AMM D/O 49-61-00-00).
** ON A/C NOT FOR ALL
5. Interface
A. Aircraft Digital Interface
The ECB communicates to other aircraft systems via three seperate LOW SPEED ARINC 429 buses.
(1) ARINC 429 Input from the CFDS
The ECB uses this bus to receive specified data from the CFDS with applicable ARINC lables.
(2) ARINC 429 Output to the CFDS
The ECB uses this bus to transmit data to the
  • CFDS
  • SDAC
  • AIDS.
(3) ARINC 429 Input from the ECS
The ECB uses this bus to receive specific data from the ECS.
B. APU-System Interface
(Ref. AMM D/O 49-61-00-00).
** ON A/C NOT FOR ALL
6. Component Description
A. Electronic Control Box (ECB) FIN: 59-KD
(Ref. AMM D/O 49-61-00-00).
B. Data Memory Module (DMM)
The DMM is a nonvolatile memory device installed on the engine. It stores information concerning health monitoring and life usage of the APU. The DMM uses a serial communication link with the ECB to transfer the information to the ECB and vice versa. The main part of the DMM is the 16Kbyte EEPROM. The EEPROM is organized in 8 pages, each capable to store 256 8-Byte Words.
The ECB supplies the DMM in parallel to the De-Oiling Solenoid with 28VDC.
** ON A/C NOT FOR ALL
7. Operation/Control and Indicating
A. Table of LRUs examined through the BITE of the ECB in different test modes.

Table 1
------------------------------------------------------------------------------
NO ! LRU ! TEST MODE ! ALTERNATE
! ! PUT ! IOT ! SELF TEST ! VALUE
-------+--------------------------+-------+-------+-------------+-------------
1 ! MAIN START CONTACTOR ! X ! X ! X !
2 ! BACK UP START CONTACTOR ! X ! X ! X !
3 ! STARTER MOTOR ! ! X ! !
4 ! LOP SWITCH ! X ! ! X !
5 ! LCV POSITION SWITCH ! X ! ! X !
6 ! OIL FILTER DP SWITCH ! ! X ! !
7 ! T2 SENSOR ! X ! X ! X ! X
8 ! SPEED SENSORS ! X ! X ! X !
9 ! DELTA P SENSOR ! X ! X ! X ! X
10 ! PT SENSOR ! X ! X ! X ! X
11 ! P2 SENSOR ! X ! X ! X ! X
12 ! EGT SENSORS ! X ! X ! X !
13 ! FUEL TEMP SENSOR ! X ! X ! X ! X
14 ! OIL TEMP SENSOR ! X ! X ! X ! X
15 ! AIR INTAKE FLAP ACTUATOR ! X ! X ! X !
16 ! IGV LVDT ! X ! X ! X ! X
17 ! SCV LVDT ! X ! X ! X !
18 ! DE-OIL SOLENOID ! X ! X ! X !
19 ! FUEL SOLENOID ! X ! X ! X !
20 ! LOAD VALVE SOLENOID ! X ! X ! X !
21 ! FLOW DIVIDER SOLENOID ! X ! X ! X !
22 ! SCV TORQUE MOTOR ! X ! ! X !
23 ! FUEL TORQUE MOTOR ! X ! ! X !
24 ! IGV TORQUE MOTOR ! X ! ! X !
25 ! LOW FUEL PRESSURE RELAY ! X ! X ! X !
26 ! FUEL RESOLVER ! X ! X ! X !
27 ! APU OIL HEATER ! ! X ! !
28 ! IGNITION UNIT ! X ! X ! X !
29 ! DATA MEMORY MODULE (DMM) ! X ! ! X !
30 ! ECB ! X ! X ! X !
31 ! ECS DEMAND ! ! X ! !
32 ! LOW OIL QUANTITY ! X ! ! X !
33 ! LOW FUEL PRESSURE ! ! X ! !

B. Display
F APU - APU System Menu ** ON A/C NOT FOR ALL
F APU - Menu Response to LAST LEG REPORT ** ON A/C NOT FOR ALL
F APU - Menu Response to LAST LEG REPORT ** ON A/C NOT FOR ALL
F APU - Menu Response to PREVIOUS LEGS REPORT ** ON A/C NOT FOR ALL
F APU - Menu Response to PREVIOUS LEGS REPORT ** ON A/C NOT FOR ALL
F APU - Menu Response to LRU IDENTIFICATION ** ON A/C NOT FOR ALL
F APU - Menu Response to LRU IDENTIFICATION ** ON A/C NOT FOR ALL
F APU - Menu Response to GND SCANNING ** ON A/C NOT FOR ALL
F APU - Menu Response to GND SCANNING ** ON A/C NOT FOR ALL
F APU - Menu Response to TROUBLE SHOOTING DATA ** ON A/C NOT FOR ALL
F APU - Menu Response to TROUBLE SHOOTING DATA ** ON A/C NOT FOR ALL
F APU - Menu Response to LRU EVENT DATA ** ON A/C NOT FOR ALL
F APU - Menu Response to LRU EVENT DATA ** ON A/C NOT FOR ALL
F APU - Menu Response to CLASS 3 FAULTS ** ON A/C NOT FOR ALL
F APU - Menu Response to CLASS 3 FAULTS ** ON A/C NOT FOR ALL
F APU - Menu Response to TEST ** ON A/C NOT FOR ALL
F APU - Menu Response to TEST ** ON A/C NOT FOR ALL
F APU - Menu Response to SHUTDOWNS ** ON A/C NOT FOR ALL
F APU - Menu Response to SHUTDOWNS ** ON A/C NOT FOR ALL
F APU - Menu Response to SHUTDOWN EVENT ** ON A/C NOT FOR ALL
F APU - Menu Response to SHUTDOWN EVENT ** ON A/C NOT FOR ALL
F APU - Menu Response to SERVICE DATA and Menu Response to DMM ** ON A/C NOT FOR ALL
F APU - Menu Response to SERVICE DATA and Menu Response to DMM ** ON A/C NOT FOR ALL
F APU - Menu Response to SERVICE DATA and Menu Response to DMM ** ON A/C NOT FOR ALL
The MCDU shows the APU information in normal mode and menu mode through the CFDS.
(1) Normal Mode
During a normal mode the ECB continuously transmits all class 1 and 2 faults and messages to the CFDS. The MCDU display shows the faults and messages when the 'LAST LEG REPORT' is set. The Centralized Fault Display Interface Unit (CFDIU) makes the display on the MCDU in a normal mode.
(2) Menu Mode
The menu mode is available on the MCDU display when the 'SYSTEM REPORT TEST' is set and an 'APU' selection is made. The MCDU display shows the related APU system data and the faults when a selection of the APU menu is made. The ECB makes the display on the MCDU in a menu mode. The APU menu includes the:
  • LAST LEG REPORT,
  • PREVIOUS LEGS REPORT,
  • LRU IDENTIFICATION,
  • GND SCANNING,
  • TROUBLE SHOOT DATA,
  • CLASS 3 FAULTS.
  • TEST,
  • SHUTDOWNS,
  • SERVICE DATA.
(a) <LAST LEG REPORT>
This gives the LRU failures (class 1 and 2) during the last flight leg, related to the system selection.
(b) <PREVIOUS LEGS REPORT>
This gives all the LRU failures (CLASS 1 and 2) for the previous flight legs, a maximum of 30 failures.
(c) <LRU IDENTIFICATION>
This gives the part number, the serial number and the software version of the ECB only.
(d) <GND SCANNING>
This gives the possibility to show system failure. You get access to the GND Scanning through the MCDU on ground, wether the APU is running or not. When the APU runs and GND Scanning is activated, the failures are shown when they occure. These failures are not memorized.
(e) <TROUBLE SHOOT DATA>
This gives trouble shooting information to each CLASS 1 and CLASS 2 fault in plain english, like
  • Additional fault information,
  • Fault Code Number (FCN),
  • Fault Classification,
  • Flight Phase during fault detection.
  • Existing other faults.
1 <LRU EVENT>
This gives more information about the status of the APU and periphical systems during detection of the faulty LRU, like:
  • Fault Code Number (FCN),
  • Test Mode at time of detection (PUT/SET/IOT),
  • Status of APU MASTER SW,
  • Status of START CONTACTOR,
  • Status of APU SPEED,
  • Status of FLAME ON,
  • Status of BLEED SWITCH,
  • Status of MES mode,
  • Status of COOLDOWN,
  • Status of LOW FUEL PRESS,
  • Status of IGV/SCV position,
  • Status of IN AIR,
  • Status of IGV TRIM.
(f) <CLASS 3 FAULTS>
This gives every class 3 fault that has occurred.
(g) <TEST>
This will start a self test and will show any LRU failures (not related to class of fault). When the test passes the message TEST OK is shown.
(h) <SHUTDOWNS>
This gives information about protective shutdowns, like
  • type of shutdown,
  • LRU which causes the shutdown,
  • if the ECB does not detect a failed component, the most likely LRUs
  • date and GMT of shutdown occurence,
  • access to additional troubleshooting data via <LRU DATA>.
  • access to APU status information at time of protective shutdown via
    <EVENT DATA>.
(i) <APU SERVICE DATA>
This gives:
  • the APU S/N.......... : serial number,
  • the APU HOURS.........: operation hours,
  • The CYCLES........... : start cycles,
  • the OIL LEVEL.........: OK or LOW
1 <DMM>
This gives the settings of several items which allows the monitoring of the APU life usage and health condition.
The list that follows provides the description of the DMM report acronyms:
------------+------------------------------------------------------------------
Parameter ! Description
------------+------------------------------------------------------------------
ECS OFFSET ! IGV bias for ECS to fine tune the APU to deliver
! required performance. This is performed only
! during the ATP of the APU.
FUELOFF100 ! Fuel Control Closed Loop Offset at
! 100 lb/hr command. This is calculated by the ECB on
! every APU start and used to monitor the fuel control.
FUELOFF200 ! Fuel Control Closed Loop Offset at 200 lb/hr command.
! This is calculated by the ECB on every APU start and
! used to monitor the fuel control.
ABSTARTS ! Number of unsuccessful APU Starts
APU OPTIONS ! APU Options (standard/original/de-rate)
FLTSTART ! Number of APU Starts in flight
ABFLTSTART ! Number of unsuccessful APU starts in flight.
TURB CYCLES ! Number of Cycles on the Turbine
LC CYCLES ! Number of Cycles on the Load Compressor
EC CYCLES ! Number of Cycles on the Engine Compressor
------------+------------------------------------------------------------------
CLOG FILTER ! Number of Clogged Oil Filter events
OVRHAUL HR ! Hours of APU operation since shop visit
OVRHAUL MIN ! Minutes of APU operation since shop visit
INSTALL HR ! Hours of APU operation since installation in A/C
INSTALL MIN ! Minutes of APU operation since installation in A/C
ECS HOURS ! Hours of APU operation in ECS mode
ECS MINUTES ! Minutes of APU operation in ECS mode
FLT HOURS ! Operating Hours in flight
FLT MINUTES ! Operating Minutes in flight
HOTTIME ! Operating Hours T2 > 100 DEGF
------------+------------------------------------------------------------------
CLOG FILTER ! Number of Clogged Oil Filter events
OVRHAUL HR ! Hours of APU operation since shop visit
OVRHAUL MIN ! Minutes of APU operation since shop visit
INSTALL HR ! Hours of APU operation since installation in A/C
INSTALL MIN ! Minutes of APU operation since installation in A/C
ECS HOURS ! Hours of APU operation in ECS mode
ECS MINUTES ! Minutes of APU operation in ECS mode
FLT HOURS ! Operating Hours in flight
FLT MINUTES ! Operating Minutes in flight
HOTTIME ! Operating Hours T2 > 100 DEGF
------------+------------------------------------------------------------------
COLD TIME ! Operating Hours T2 < 0 DEGF
NMES ! Number of main engine starts performed with the APU
HIGHSTRT ! Number of APU starts above 25000 ft
BRRSTRT ! Number of APU starts with oiltemp < 0 DEGF
BRRRRSTRT ! Number of APU starts with oiltemp < -40 DEGF
LOWOILPR ! Number of low oil pressure shutdowns
NUM3LOP ! Number of 3 consecutive low oil pressure shutdowns
CONSECLOP ! Number of consecutive low oil pressure shutdowns
HOT ! Number of HIGH OIL TEMPERATURE SHUTDOWNS
OVRTMPGOV ! Number of ONSPEED OVERTEMP SHUTDOWNS
------------+------------------------------------------------------------------
OVRTMPSTRT ! Number of STARTING OVERTEMP SHUTDOWNS
REVFLOW ! Number of REVERSE FLOW SHUTDOWNS
NO ACCEL ! Number of NO ACCELERATION SHUTDOWNS
OVERSPEED ! Number of OVERSPEED SHUTDOWNS
UNDERSPEED ! Number of UNDERSPEED SHUTDOWNS
FILTER SDN ! Number of CLOGGED OIL FILTER SHUTDOWNS
NO FLAME ! Number of NO FLAME SHUTDOWNS
INLET HOT ! Number of INLET HOT SHUTDOWNS
INFLIGHT SD ! Number of INFLIGHT SHUTDOWNS
AT4ECS ! AVERAGE T4 ECS DEG F
------------+------------------------------------------------------------------
AT4MES ! AVERAGE T4 MES DEG F
AT4FLT ! AVERAGE T4 INFLIGHT DEG F
T1800 ! HOURS T4 > 1800 DEG F
T1850 ! HOURS T4 > 1850 DEG F
T1900 ! HOURS T4 > 1900 DEG F
T1950 ! HOURS T4 > 1950 DEG F
T2000 ! HOURS T4 > 2000 DEG F
RECT4R ! HIGHEST T4 ONSPEED DEGF
RECT5S ! HIGHEST T5 DURING START DEGF
ABRTCLDN ! NUMBER OF ABORTED COOLDOWNS
------------+------------------------------------------------------------------
CT5ATP ! Average corrected T5 DURING MES DEGF
MDNCT5ATP ! MAIDEN ( after 10 MESs) corrected T5 DURING MES DEGF
CT5ATP500 ! Average corrected T5 MES AT 500 HOURS DEGF
CT5ATP1000 ! Average corrected MES AT 1000 HOURS DEGF
CT5ATP1500 ! Average corrected T5 MES AT 1500 HOURS DEGF
CT5ATP2000 ! Average corrected T5 MES AT 2000 HOURS DEGF
CT5ATP2500 ! Average corrected T5 MES AT 2500 HOURS DEGF
CT5ATP3000 ! Average corrected T5 MES AT 3000 HOURS DEGF
CT5ATP3500 ! Average corrected T5 MES AT 3500 HOURS DEGF
CT5ATP4000 ! Average corrected T5 MES AT 4000 HOURS DEGF
------------+------------------------------------------------------------------
CT5ATP4500 ! Average corrected T5 MES AT 4500 HOURS DEGF
CT5ATP5000 ! Average corrected T5 MES AT 5000 HOURS DEGF
CT5ATP6000 ! Average corrected T5 MES AT 6000 HOURS DEGF
CT5ATP7000 ! Average corrected T5 MES AT 7000 HOURS DEGF
CT5ATP8000 ! Average corrected T5 MES AT 8000 HOURS DEGF
CT5ATP9000 ! Average corrected T5 MES AT 9000 HOURS DEGF
CT5ATP10000 ! Average corrected T5 MES AT 10000 HOURS DEGF
CPTATP ! Average corrected PT DURING MES PSIA
MDNCPTATP ! MAIDEN ( after 10 MESs ) corrected PT DURING MES PSIA
CPTATP500 ! Average corrected PT DURING MES AT 500 HOURS PSIA
------------+------------------------------------------------------------------
CPTATP1000 ! Average corrected PT DURING MES AT 1000 HOURS PSIA
CPTATP1500 ! Average corrected PT DURING MES AT 1500 HOURS PSIA
CPTATP2000 ! Average corrected PT DURING MES AT 2000 HOURS PSIA
CPTATP2500 ! Average corrected PT DURING MES AT 2500 HOURS PSIA
CPTATP3000 ! Average corrected PT DURING MES AT 3000 HOURS PSIA
CPTATP3500 ! Average corrected PT DURING MES AT 3500 HOURS PSIA
CPTATP4000 ! Average corrected PT DURING MES AT 4000 HOURS PSIA
CPTATP4500 ! Average corrected PT DURING MES AT 4500 HOURS PSIA
CPTATP5000 ! Average corrected PT DURING MES AT 5000 HOURS PSIA
CPTATP6000 ! Average corrected PT DURING MES AT 6000 HOURS PSIA
------------+------------------------------------------------------------------
CPTATP7000 ! Average corrected PT DURING MES AT 7000 HOURS PSIA
CPTATP8000 ! Average corrected PT DURING MES AT 8000 HOURS PSIA
CPTATP9000 ! Average corrected PT DURING MES AT 9000 HOURS PSIA
CPTATP10000 ! Average corrected PT DURING MES AT 10000 HOURS PSIA
CWFATP ! Average corrected FUEL FLOW DURING MES PPH
MDNCWFATP ! MAIDEN ( after 10 MESs ) corrected FUEL FLOW DURING MES PPH
CWFATP500 ! Average corrected FUEL FLOW MES AT 500 HOURS PPH
CWFATP1000 ! Average corrected FUEL FLOW MES AT 1000 HOURS PPH
CWFATP1500 ! Average corrected FUEL FLOW MES AT 1500 HOURS PPH
CWFATP2000 ! Average corrected FUEL FLOW MES AT 2000 HOURS PPH
------------+------------------------------------------------------------------
CWFATP2500 ! Average corrected FUEL FLOW MES AT 2500 HOURS PPH
CWFATP3000 ! Average corrected FUEL FLOW MES AT 3000 HOURS PPH
CWFATP3500 ! Average corrected FUEL FLOW MES AT 3500 HOURS PPH
CWFATP4000 ! Average corrected FUEL FLOW MES AT 4000 HOURS PPH
CWFATP4500 ! Average corrected FUEL FLOW MES AT 4500 HOURS PPH
CWFATP5000 ! Average corrected FUEL FLOW MES AT 5000 HOURS PPH
CWFATP6000 ! Average corrected FUEL FLOW MES AT 6000 HOURS PPH
CWFATP7000 ! Average corrected FUEL FLOW MES AT 7000 HOURS PPH
CWFATP8000 ! Average corrected FUEL FLOW MES AT 8000 HOURS PPH
CWFATP9000 ! Average corrected FUEL FLOW MES AT 9000 HOURS PPH
------------+------------------------------------------------------------------
CWFATP10000 ! Average corrected FUEL FLOW MES AT 10000 HOURS PPH
IGVATP ! IGV POSITION DURING MES DEGREES
SPDROOPS ! NUMBER OF SPEED DROOPS BELOW 85% SPEED
START TIME ! LENGTH IN TIME OF LAST APU START (sec)
------------+------------------------------------------------------------------

(3) Menu Mode
The menu mode is available on the MCDU display when the 'SYSTEM REPORT TEST' is set and an 'APU' selection is made. The MCDU display shows the related APU system data and the faults when a selection of the APU menu is made. The ECB makes the display on the MCDU in a menu mode. The APU menu includes the:
  • LAST LEG REPORT,
  • PREVIOUS LEGS REPORT,
  • LRU IDENTIFICATION,
  • GND SCANNING,
  • TROUBLE SHOOT DATA,
  • CLASS 3 FAULTS.
  • TEST,
  • SHUTDOWNS,
  • SERVICE DATA.
(a) <LAST LEG REPORT>
This gives the LRU failures (class 1 and 2) during the last flight leg, related to the system selection.
(b) <PREVIOUS LEGS REPORT>
This gives all the LRU failures (CLASS 1 and 2) for the previous flight legs, a maximum of 30 failures.
(c) <LRU IDENTIFICATION>
This gives the availability of iCARE in main engine 1 and 2.
(d) <GND SCANNING>
This gives the possibility to show system failure. You get access to the GND Scanning through the MCDU on ground, wether the APU is running or not. When the APU runs and GND Scanning is activated, the failures are shown when they occur. These failures are not memorized.
(e) <TROUBLE SHOOT DATA>
This gives trouble shooting information to each CLASS 1 and CLASS 2 fault in plain english, like
  • Additional fault information,
  • Fault Code Number (FCN),
  • Fault Classification,
  • Flight Phase during fault detection.
  • Existing other faults.
1 <LRU EVENT>
This gives more information about the status of the APU and periphical systems during detection of the faulty LRU, like:
  • Fault Code Number (FCN),
  • Test Mode at time of detection (PUT/SET/IOT),
  • Status of APU MASTER SW,
  • Status of START CONTACTOR,
  • Status of APU SPEED,
  • Status of FLAME ON,
  • Status of BLEED SWITCH,
  • Status of MES mode,
  • Status of COOLDOWN,
  • Status of LOW FUEL PRESS,
  • Status of IGV/SCV position,
  • Status of IN AIR,
  • Status of IGV TRIM.
(f) <CLASS 3 FAULTS>
This gives every class 3 fault that has occurred.
(g) <TEST>
This will start a self test and will show any LRU failures (not related to class of fault). When the test passes the message TEST OK is shown.
(h) <SHUTDOWNS>
This gives information about protective shutdowns, like
  • type of shutdown,
  • LRU which causes the shutdown,
  • if the ECB does not detect a failed component, the most likely LRUs
  • date and GMT of shutdown occurrence,
  • access to additional troubleshooting data via <LRU DATA>.
  • access to APU status information at time of protective shutdown via
    <EVENT DATA>.
(i) <APU SERVICE DATA>
This gives:
  • the APU S/N.......... : serial number,
  • the APU HOURS.........: operation hours,
  • The CYCLES........... : start cycles,
  • the OIL LEVEL.........: OK or LOW
1 <DMM>
This gives the settings of several items which allows the monitoring of the APU life usage and health condition.
The list that follows provides the description of the DMM report acronyms:
------------+------------------------------------------------------------------
Parameter ! Description
------------+------------------------------------------------------------------
ECS OFFSET ! IGV bias for ECS to fine tune the APU to deliver required
! performance. It agrees with the value measured during the
! ATP of the APU if SB8314 is installed. If not zero is displayed.
FUELOFF100 ! Fuel Control Closed Loop Offset at
! 100 lb/hr command. This is calculated by the ECB on
! every APU start and used to monitor the fuel control.
FUELOFF200 ! Fuel Control Closed Loop Offset at 200 lb/hr command.
! This is calculated by the ECB on every APU start and
! used to monitor the fuel control.
ABSTARTS ! Number of unsuccessful APU Starts
APU OPTIONS ! APU Options (standard/original/de-rate)
FLTSTART ! Number of APU Starts in flight
ABFLTSTART ! Number of unsuccessful APU starts in flight.
TURB CYCLES ! Number of Cycles on the Turbine
LC CYCLES ! Number of Cycles on the Load Compressor
EC CYCLES ! Number of Cycles on the Engine Compressor
------------+------------------------------------------------------------------
CLOG FILTER ! Number of Clogged Oil Filter events
OVRHAUL HR ! Hours of APU operation since shop visit
OVRHAUL MIN ! Minutes of APU operation since shop visit
INSTALL HR ! Hours of APU operation since installation in A/C
INSTALL MIN ! Minutes of APU operation since installation in A/C
ECS HOURS ! Hours of APU operation in ECS mode
ECS MINUTES ! Minutes of APU operation in ECS mode
FLT HOURS ! Operating Hours in flight
FLT MINUTES ! Operating Minutes in flight
HOTTIME ! Operating Hours T2 > 100 DEGF
------------+------------------------------------------------------------------
CLOG FILTER ! Number of Clogged Oil Filter events
OVRHAUL HR ! Hours of APU operation since shop visit
OVRHAUL MIN ! Minutes of APU operation since shop visit
INSTALL HR ! Hours of APU operation since installation in A/C
INSTALL MIN ! Minutes of APU operation since installation in A/C
ECS HOURS ! Hours of APU operation in ECS mode
ECS MINUTES ! Minutes of APU operation in ECS mode
FLT HOURS ! Operating Hours in flight
FLT MINUTES ! Operating Minutes in flight
HOTTIME ! Operating Hours T2 > 100 DEGF
------------+------------------------------------------------------------------
COLD TIME ! Operating Hours T2 < 0 DEGF
NMES ! Number of main engine starts performed with the APU
HIGHSTRT ! Number of APU starts above 25000 ft
BRRSTRT ! Number of APU starts with oiltemp < 0 DEGF
BRRRRSTRT ! Number of APU starts with oiltemp < -40 DEGF
LOWOILPR ! Number of low oil pressure shutdowns
NUM3LOP ! Number of 3 consecutive low oil pressure shutdowns
CONSECLOP ! Number of consecutive low oil pressure shutdowns
HOT ! Number of HIGH OIL TEMPERATURE SHUTDOWNS
OVRTMPGOV ! Number of ONSPEED OVERTEMP SHUTDOWNS
------------+------------------------------------------------------------------
OVRTMPSTRT ! Number of STARTING OVERTEMP SHUTDOWNS
REVFLOW ! Number of REVERSE FLOW SHUTDOWNS
NO ACCEL ! Number of NO ACCELERATION SHUTDOWNS
OVERSPEED ! Number of OVERSPEED SHUTDOWNS
UNDERSPEED ! Number of UNDERSPEED SHUTDOWNS
FILTER SDN ! Number of CLOGGED OIL FILTER SHUTDOWNS
NO FLAME ! Number of NO FLAME SHUTDOWNS
INLET HOT ! Number of INLET HOT SHUTDOWNS
INFLIGHT SD ! Number of INFLIGHT SHUTDOWNS
AT4ECS ! AVERAGE T4 ECS DEG F
------------+------------------------------------------------------------------
AT4MES ! AVERAGE T4 MES DEG F
AT4FLT ! AVERAGE T4 INFLIGHT DEG F
T1800 ! HOURS T4 > 1800 DEG F
T1850 ! HOURS T4 > 1850 DEG F
T1900 ! HOURS T4 > 1900 DEG F
T1950 ! HOURS T4 > 1950 DEG F
T2000 ! HOURS T4 > 2000 DEG F
RECT4R ! HIGHEST T4 ONSPEED DEGF
RECT5S ! HIGHEST T5 DURING START DEGF
ABRTCLDN ! NUMBER OF ABORTED COOLDOWNS
------------+------------------------------------------------------------------
CT5ATP ! Average corrected T5 DURING MES DEGF
MDNCT5ATP ! MAIDEN ( after 10 MESs) corrected T5 DURING MES DEGF
CT5ATP500 ! Average corrected T5 MES AT 500 HOURS DEGF
CT5ATP1000 ! Average corrected MES AT 1000 HOURS DEGF
CT5ATP1500 ! Average corrected T5 MES AT 1500 HOURS DEGF
CT5ATP2000 ! Average corrected T5 MES AT 2000 HOURS DEGF
CT5ATP2500 ! Average corrected T5 MES AT 2500 HOURS DEGF
CT5ATP3000 ! Average corrected T5 MES AT 3000 HOURS DEGF
CT5ATP3500 ! Average corrected T5 MES AT 3500 HOURS DEGF
CT5ATP4000 ! Average corrected T5 MES AT 4000 HOURS DEGF
------------+------------------------------------------------------------------
CT5ATP4500 ! Average corrected T5 MES AT 4500 HOURS DEGF
CT5ATP5000 ! Average corrected T5 MES AT 5000 HOURS DEGF
CT5ATP6000 ! Average corrected T5 MES AT 6000 HOURS DEGF
CT5ATP7000 ! Average corrected T5 MES AT 7000 HOURS DEGF
CT5ATP8000 ! Average corrected T5 MES AT 8000 HOURS DEGF
CT5ATP9000 ! Average corrected T5 MES AT 9000 HOURS DEGF
CT5ATP10000 ! Average corrected T5 MES AT 10000 HOURS DEGF
CPTATP ! Average corrected PT DURING MES PSIA
MDNCPTATP ! MAIDEN ( after 10 MESs ) corrected PT DURING MES PSIA
CPTATP500 ! Average corrected PT DURING MES AT 500 HOURS PSIA
------------+------------------------------------------------------------------
CPTATP1000 ! Average corrected PT DURING MES AT 1000 HOURS PSIA
CPTATP1500 ! Average corrected PT DURING MES AT 1500 HOURS PSIA
CPTATP2000 ! Average corrected PT DURING MES AT 2000 HOURS PSIA
CPTATP2500 ! Average corrected PT DURING MES AT 2500 HOURS PSIA
CPTATP3000 ! Average corrected PT DURING MES AT 3000 HOURS PSIA
CPTATP3500 ! Average corrected PT DURING MES AT 3500 HOURS PSIA
CPTATP4000 ! Average corrected PT DURING MES AT 4000 HOURS PSIA
CPTATP4500 ! Average corrected PT DURING MES AT 4500 HOURS PSIA
CPTATP5000 ! Average corrected PT DURING MES AT 5000 HOURS PSIA
CPTATP6000 ! Average corrected PT DURING MES AT 6000 HOURS PSIA
------------+------------------------------------------------------------------
CPTATP7000 ! Average corrected PT DURING MES AT 7000 HOURS PSIA
CPTATP8000 ! Average corrected PT DURING MES AT 8000 HOURS PSIA
CPTATP9000 ! Average corrected PT DURING MES AT 9000 HOURS PSIA
CPTATP10000 ! Average corrected PT DURING MES AT 10000 HOURS PSIA
CWFATP ! Average corrected FUEL FLOW DURING MES PPH
MDNCWFATP ! MAIDEN ( after 10 MESs ) corrected FUEL FLOW DURING MES PPH
CWFATP500 ! Average corrected FUEL FLOW MES AT 500 HOURS PPH
CWFATP1000 ! Average corrected FUEL FLOW MES AT 1000 HOURS PPH
CWFATP1500 ! Average corrected FUEL FLOW MES AT 1500 HOURS PPH
CWFATP2000 ! Average corrected FUEL FLOW MES AT 2000 HOURS PPH
------------+------------------------------------------------------------------
CWFATP2500 ! Average corrected FUEL FLOW MES AT 2500 HOURS PPH
CWFATP3000 ! Average corrected FUEL FLOW MES AT 3000 HOURS PPH
CWFATP3500 ! Average corrected FUEL FLOW MES AT 3500 HOURS PPH
CWFATP4000 ! Average corrected FUEL FLOW MES AT 4000 HOURS PPH
CWFATP4500 ! Average corrected FUEL FLOW MES AT 4500 HOURS PPH
CWFATP5000 ! Average corrected FUEL FLOW MES AT 5000 HOURS PPH
CWFATP6000 ! Average corrected FUEL FLOW MES AT 6000 HOURS PPH
CWFATP7000 ! Average corrected FUEL FLOW MES AT 7000 HOURS PPH
CWFATP8000 ! Average corrected FUEL FLOW MES AT 8000 HOURS PPH
CWFATP9000 ! Average corrected FUEL FLOW MES AT 9000 HOURS PPH
------------+------------------------------------------------------------------
CWFATP10000 ! Average corrected FUEL FLOW MES AT 10000 HOURS PPH
IGVATP ! IGV POSITION DURING MES DEGREES
SPDROOPS ! NUMBER OF SPEED DROOPS BELOW 85% SPEED
START TIME ! LENGTH IN TIME OF LAST APU START (sec)
ECS OFFSET ! Code status of ECS OFFSET activation. It shows ACTIVE when
! SB8314 is implemented; if not, it shows NOT ACTIVE.
------------+------------------------------------------------------------------

C. BITE Detection
(1) CLASS 1 Faults

Table 1
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
POWER SUPPLY INTERRUPT ! 24-00-00 ! Power Supply Interrupt
----------------------------+----------+---------------------------------------
CHECK APU INLET ! 49-16-00 ! No LRU detected
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! Inlet Flap shows Flap open high
(4005KM) ! ! current
! ! Inlet Flap shows Flap failed to open
! ! Inlet Flap shows Flap loss of open
! ! indication
----------------------------+----------+---------------------------------------
CHECK IGV ASSEMBLY/ ! 49-23-00 ! Bleed Shutoff due to high Temperature
IGV ACTUATOR P21 ! !
----------------------------+----------+---------------------------------------
IGV ACTUATOR P21 ! 49-23-51 ! IGV Torque Motor shows open/short
! ! circuit
----------------------------+----------+---------------------------------------
IGV ACTUATOR P21/ ! 49-23-51 ! No LRU detected
ECB (59KD) ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT P19 ! 49-32-11 ! Fuel Solenoid shows circuit failure
! ! Fuel Torque Motor shows open/short
! ! circuit
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT P19/ ! 49-32-11 ! Fuel Flow disagrees with command
APU FUEL SUPPLY ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT P19/ ! 49-32-11 ! No LRU detected
ECB (59KD) ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT P19/ ! 49-32-11 ! No LRU detected
FLOW DIVIDER ASSEMBLY ! !
----------------------------+----------+---------------------------------------
FCU/APU FUEL SUPPLY/ ! 49-32-11 ! No LRU detected
APU ROTATION ! !
----------------------------+----------+---------------------------------------
CHECK IGNITION SYSTEM/ ! 49-41-00 ! No LRU detected
FCU/ECB (59KD) ! !
----------------------------+----------+---------------------------------------
IGNITION EXCITER P10 ! 49-41-38 ! Ignition Unit shows open/short
! ! circuit
----------------------------+----------+---------------------------------------
ACFT BAT NOT SELECTED/ ! 49-42-55 ! Main Start Contactor shows open
CONTACTOR (5KA) ! ! circuit
----------------------------+----------+---------------------------------------
STARTER MOTOR (8KA) ! 49-42-51 ! Starter Motor shows open/short
! !
----------------------------+----------+---------------------------------------
STARTER MOTOR (8KA)/ ! 49-42-51 ! No LRU detected
APU ROTATION ! !
----------------------------+----------+---------------------------------------
CONTACTOR (10KA) ! 49-42-55 ! Backup Contactor shows open circuit
----------------------------+----------+---------------------------------------
CHECK PRESS XDCR WIRING ! 49-51-00 ! Press XDCR wiring shows open circuit
----------------------------+----------+---------------------------------------
CHECK PRESS XDCR WIRING/ ! 49-51-00 ! Press XDCR wiring open
ECB (59KD) ! ! or ECB internal failure
----------------------------+----------+---------------------------------------
DIFFERENTIAL PRESS XDCR ! 49-51-16 ! DP XDCR shows out-of-range drift
P24 ! !
----------------------------+----------+---------------------------------------
DP XDCR P24/PT XDCR P23/ ! 49-51-16 ! No LRU detected
SURGE CONTROL VALVE P18 ! !
----------------------------+----------+---------------------------------------
TOTAL PRESS XDCR P23 ! 49-51-17 ! PT XDCR shows out-of-range
! ! PT and P2 disagree
! ! PT XDCR shows out-of-range high/low
----------------------------+----------+---------------------------------------
LOAD CONTROL VALVE P12 ! 49-51-51 ! LCV Solenoid shows circuit failure
----------------------------+----------+---------------------------------------
SURGE CONTROL VALVE P18 ! 49-51-52 ! SCV Torque Motor shows open/short
! ! circuit
! ! SCV LVDT pri/sec shows open circuit
! ! SCV position disagrees with command
----------------------------+----------+---------------------------------------
SCV P18/PRESS XDCR P24/ ! 49-51-52 ! Bleed shutoff due to reverse flow
PRESS XDCR P23 ! ! condition
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB internal failure
----------------------------+----------+---------------------------------------
SPEED SENSOR P26 ! 49-71-13 ! Speed sensor shows amplitude failure
----------------------------+----------+---------------------------------------
SPEED SENSOR P26/ ! 49-71-13 ! Speed sensor 1 or 2 fails and
ECB (59KD) ! ! ECB internal failure
----------------------------+----------+---------------------------------------
EGT TCPLE RAKES 1 + 2 ! 49-72-15 ! Both EGT sensors failed
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE 1 ! 49-72-15 ! EGT1 sensor and internal ECB failure
+ ECB (59KD) ! !
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE 2 ! 49-72-15 ! EGT2 sensor and internal ECB failure
+ ECB (59KD) ! !
----------------------------+----------+---------------------------------------
OIL COOLER/ ! 49-91-44 ! No LRU detected
COOLING FAN ASSEMBLY ! !
----------------------------+----------+---------------------------------------
LUBE PUMP FILTER P9 + ! 49-91-45 ! Oil Filter shows clogged
GEN SCAV FILTER P5 ! !
----------------------------+----------+---------------------------------------
DEOIL SOLENOID P15 ! 49-91-49 ! Deoil Solenoid shows open/closed
! ! circuit
----------------------------+----------+---------------------------------------
LOP SW P14/OIL PUMP/ ! 49-94-44 ! No LRU detected
DEOIL SOLENOID P15 ! !
----------------------------+----------+---------------------------------------

(2) CLASS 1 Faults

Table 1
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
POWER SUPPLY INTERRUPT ! 24-00-00 ! POWER SUPPLY INTERRUPT
----------------------------+----------+---------------------------------------
CHECK APU INLET ! 49-16-00 ! NO LRU FAULT DETECTED
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! INLET FLAP SHOWS FLAP OPEN HIGH
(4015KM) ! ! CURRENT
! ! INLET FLAP SHOWS FLAP FAILED TO OPEN
! ! INLET FLAP SHOWS FLAP LOSS OF OPEN
! ! INDICATION
----------------------------+----------+---------------------------------------
CHECK IGV ASSEMBLY/ ! 49-23-00 ! BLEED SHUTOFF DUE TO HIGH TEMPERATURE
IGV ACTUATOR (8014KM) ! ! IGV POSITION DISAGREES WITH COMMAND
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM) ! 49-23-51 ! IGV TORQUE MOTOR SHOWS OPEN/SHORT
! ! CIRCUIT
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM)/ ! 49-23-51 ! NO LRU FAULT DETECTED
ECB (59KD) ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT ! 49-32-11 ! FUEL SOLENOID SHOWS CIRCUIT FAILURE
(8022KM) ! ! FUEL TORQUE MOTOR SHOWS OPEN/SHORT
! ! CIRCUIT
----------------------------+----------+---------------------------------------
FUEL CTRL UNIT(8022KM) / ! 49-32-11 ! FUEL FLOW DISAGREES WITH COMMAND
APU FUEL SUPPLY ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT ! 49-32-11 ! NO LRU FAULT DETECTED
(8022KM) / ECB (59KD) ! !
----------------------------+----------+---------------------------------------
FUEL CTRL UNIT (8022KM)/ ! 49-32-11 ! NO LRU FAULT DETECTED
FLOW DIVIDER (8024KM) ! !
----------------------------+----------+---------------------------------------
FCU (8022KM) / APU FUEL ! 49-32-11 ! NO LRU FAULT DETECTED
SUPPLY / APU ROTATION ! !
----------------------------+----------+---------------------------------------
FLOW DIVIDER SOL(8025KM) ! 49-32-14 ! FLOW DIVIDER SOLENOID
! ! SHOWS CIRCUIT FAILURE
----------------------------+----------+---------------------------------------
CHECK IGNITION SYSTEM/ ! 49-41-00 ! NO LRU FAULT DETECTED
FCU(8022KM)/FUEL SUPPLY ! !
----------------------------+----------+---------------------------------------
IGNITION UNIT (8030KM) ! 49-41-38 ! IGNITION UNIT SHOWS OPEN CIRCUIT
! ! IGNITION UNIT SHOWS SHORT CIRCUIT
----------------------------+----------+---------------------------------------
STARTER MOTOR (8KA) ! 49-42-51 ! STARTER MOTOR SHOWS SHORT CIRCUIT
! ! STARTER MOTOR SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
STARTER MOTOR (8KA)/ ! 49-42-51 ! NO LRU FAULT DETECTED
APU ROTATION ! !
----------------------------+----------+---------------------------------------
CONTACTOR (10KA) ! 49-42-55 ! BACKUP START CONTACTOR SHOWS OPEN
! ! CIRCUIT
----------------------------+----------+---------------------------------------
ACFT BAT NOT SELECTED/ ! 49-42-55 ! MAIN START CONTACTOR SHOWS OPEN
CONTACTOR (5KA) ! ! CIRCUIT
----------------------------+----------+---------------------------------------
DIFFERENTIAL PRESS XDCR ! 49-51-16 ! DELTA PRESSURE SENSOR SHOWS OUT OF
(8043KM) ! ! RANGE HIGH
! ! DELTA PRESSURE SENSOR SHOWS OUT OF
! ! RANGE LOW
! ! DELTA PRESSURE SENSOR SHOWS OUT OF
! ! RANGE DRIFT
----------------------------+----------+---------------------------------------
PRESS XDCRS (8044KM) / ! 49-51-16 ! NO LRU FAULT DETECTED
(8043KM) / SCV (8058KM) ! !
----------------------------+----------+---------------------------------------
TOTAL PRESS XDCR(8044KM) ! 49-51-17 ! TOTAL PRESSURE SENSOR SHOWS OUT OF
! ! RANGE
! ! TOTAL PRESSURE SENSOR SHOWS OUT OF
! ! RANGE HIGH
! ! TOTAL PRESSURE SENSOR SHOWS OUT OF
! ! RANGE LOW
----------------------------+----------+---------------------------------------
PRESS XDCRS (8044KM) / ! 49-51-17 ! TOTAL PRESSURE AND INLET PRESSURE
(8048KM) ! ! DISAGREE
----------------------------+----------+---------------------------------------
LOAD CONTROL VALVE ! 49-51-51 ! LOAD VALVE SOLENOID SHOWS CIRCUIT
(8050KM) ! ! FAILURE
----------------------------+----------+---------------------------------------
SURGE CONTROL VALVE ! 49-51-52 ! SCV TORQUE MOTOR SHOWS OPEN CIRCUIT
(8058KM) ! ! SCV TORQUE MOTOR SHOWS SHORT CIRCUIT
! ! SCV LVDT PRIMARY SHOWS OPEN CIRCUIT
! ! SCV POSITION DISAGREES WITH COMMAND
----------------------------+----------+---------------------------------------
SURGE CONTROL VALVE ! 49-51-52 ! SCV LVDT EXCITATION CIRCUIT FAILURE
(8058KM) / ECB (59KD) ! !
----------------------------+----------+---------------------------------------
SCV (8058KM) / PRESS ! 49-51-52 ! BLEED SHUTOFF DUE TO REVERSE FLOW
XDCRS (8043KM)/(8044KM) ! ! CONDITION
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB INTERNAL FAILURE
----------------------------+----------+---------------------------------------
SPEED SENSOR (8060KM) ! 49-71-13 ! SPEED SENSOR SHOWS AMPLITUDE FAILURE
----------------------------+----------+---------------------------------------
SPEED SENSOR (8060KM) ! 49-71-13 ! SPEED SENSOR 1 + 2 FAILURE AND
AND ECB (59KD) ! ! ECB INTERNAL FAILURE
----------------------------+----------+---------------------------------------
EGT TCPLE RAKES(8057KM1) ! 49-72-15 ! BOTH EGT SENSORS FAILED
AND (8057KM2) ! !
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE (8057KM2) ! 49-72-15 ! EGT1 SENSOR FAILURE AND ECB INTERNAL
AND ECB (59KD) ! ! FAILURE
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE (8057KM2) ! 49-72-15 ! EGT2 SENSOR FAILURE AND ECB INTERNAL
AND ECB (59KD) ! ! FAILURE
----------------------------+----------+---------------------------------------
GEN SCAV + LUBE FILTERS ! 49-91-41 ! OIL FILTER SHOWS CLOGGED
(8069KM) / (8076KM) ! !
----------------------------+----------+---------------------------------------
OIL COOLER (8079KM) / ! 49-91-44 ! NO LRU FAULT DETECTED
COOLING FAN (8053KM) ! !
----------------------------+----------+---------------------------------------
DEOIL SOLENOID (8083KM) ! 49-91-49 ! DEOIL SOLENOID SHOWS CIRCUIT FAILURE
! ! DEOIL SOLENOID SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
LOP SW(8091KM)/OIL PUMP ! 49-94-14 ! NO LRU FAULT DETECTED
(8080KM)/DEOIL (8083KM) ! !
----------------------------+----------+---------------------------------------

(3) CLASS 2 Faults

Table 2
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
POWER SUPPLY INTERRUPT ! 24-00-00 ! POWER SUPPLY INTERRUPT
----------------------------+----------+---------------------------------------
FIRE EMERG STOP RLY 6WF ! 26-22-00 ! LOW FUEL PRESSURE RELAY SHOWS
! ! OPEN/SHORT CIRCUIT
----------------------------+----------+---------------------------------------
LOW FUEL PRESSURE ! 28-20-00 ! FUEL PRESSURE SHOWS LOW DURING APU
! ! RUN
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! INLET FLAP SHOWS FLAP CLOSE CIRCUIT
(4015KM) ! ! OPEN/SHORT
! ! INLET FLAP SHOWS FLAP OPEN CIRCUIT
! ! OPEN/SHORT
! ! INLET FLAP SHOWS FLAP CLOSE HIGH
! ! CURRENT
! ! INLET FALP SHOWS FLAP FAILED TO FULLY
! ! CLOSE
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM) ! 49-23-51 ! IGV LVDT PRI/SEC SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM)/ ! 49-23-51 ! IGV LVDT EXCITATION SHOWS FAILURE
ECB (59KD) ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT (8022KM) ! 49-32-11 ! FUEL TEMP SENSOR SHOWS OUT OF RANGE
! ! FUEL RESOLVER PRI/SEC SHOWS OPEN
! ! CIRCUIT
! ! FUEL RESOLVER POSITION SHOWS INCORRECT
! ! POSITION
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT (8022KM)/! 49-32-11 ! FUEL RESOLVER EXCITATION SHOWS FAILURE
ECB (59KD) ! ! FUEL RESOLVER PRI/SEC SHOWS OPEN
----------------------------+----------+---------------------------------------
INLET PRESS XDCR(8048KM) ! 49-51-21 ! INLET PRESS SNSR SHOWS OUT OF RANGE
! ! INLET PRESS SNSR SHOWS < 8 PSIA ON GND
----------------------------+----------+---------------------------------------
LOAD CONTROL VALVE (8050KM)! 49-51-51 ! LCV SHOWS NOT OPEN
! ! LCV SHOWS OPEN/CLOSED SWITCH FAILURE
----------------------------+----------+---------------------------------------
WRG: LOAD VALVE OPEN ! 49-61-00 ! LCV OPEN SIGNAL SHOWS CIRCUIT FAILURE
OPEN ! !
----------------------------+----------+---------------------------------------
WRG: START IN PROGRESS ! 49-61-00 ! START IN PROGRESS SHOWS CIRCUIT FAIL.
----------------------------+----------+---------------------------------------
WRG: APU AVAILABLE ! 49-61-00 ! APU AVAIL SHOWS CIRCUIT FAILURE
----------------------------+----------+---------------------------------------
WRG: APU FAULT RELAY ! 49-61-00 ! APU FAULT RELAY SHOWS CIRCUIT FAILURE
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB INTERNAL FAILURE
----------------------------+----------+---------------------------------------
LOW OIL LEVEL ! 49-93-00 ! OIL LEVEL SHOWS LOW
----------------------------+----------+---------------------------------------
LOW OIL PRESS SW (8091KM) ! 49-94-14 ! LOP SWITCH SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
OIL SUMP TEMP SENSOR ! 49-94-15 ! OIL TEMP SNSR SHOWS OUT OF RANGE
(8084KM) ! !
----------------------------+----------+---------------------------------------
APU OIL HEATER (8093KM) ! 49-96-51 ! OIL HEATER FAILURE
----------------------------+----------+---------------------------------------

(4) CLASS 2 Faults

Table 2
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
POWER SUPPLY INTERRUPT ! 24-00-00 ! POWER SUPPLY INTERRUPT
----------------------------+----------+---------------------------------------
FIRE EMERG STOP RLY 6WF ! 26-22-00 ! LOW FUEL PRESSURE RELAY SHOWS
! ! OPEN/SHORT CIRCUIT
----------------------------+----------+---------------------------------------
LOW FUEL PRESSURE ! 28-20-00 ! FUEL PRESSURE SHOWS LOW DURING APU
! ! RUN
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! INLET FLAP SHOWS FLAP CLOSE CIRCUIT
(4015KM) ! ! OPEN/SHORT
! ! INLET FLAP SHOWS FLAP OPEN CIRCUIT
! ! OPEN/SHORT
! ! INLET FLAP SHOWS FLAP CLOSE HIGH
! ! CURRENT
! ! INLET FALP SHOWS FLAP FAILED TO FULLY
! ! CLOSE
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM) ! 49-23-51 ! IGV LVDT PRI/SEC SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM)/ ! 49-23-51 ! IGV LVDT EXCITATION SHOWS FAILURE
ECB (59KD) ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT (8022KM) ! 49-32-11 ! FUEL TEMP SENSOR SHOWS OUT OF RANGE
! ! FUEL RESOLVER PRI/SEC SHOWS OPEN
! ! CIRCUIT
! ! FUEL RESOLVER POSITION SHOWS INCORRECT
! ! POSITION
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT (8022KM)/! 49-32-11 ! FUEL RESOLVER EXCITATION SHOWS FAILURE
ECB (59KD) ! ! FUEL RESOLVER PRI/SEC SHOWS OPEN
----------------------------+----------+---------------------------------------
INLET PRESS XDCR(8048KM) ! 49-51-21 ! INLET PRESS SNSR SHOWS OUT OF RANGE
! ! INLET PRESS SNSR SHOWS < 8 PSIA ON GND
----------------------------+----------+---------------------------------------
LOAD CONTROL VALVE (8050KM)! 49-51-51 ! LOAD CONTROL VALVE SHOWS OPEN
! ! AND CLOSED
! ! LOAD CONTROL VALVE SHOWS NOT CLOSED
----------------------------+----------+---------------------------------------
WRG: LOAD VALVE OPEN ! 49-61-00 ! LCV OPEN SIGNAL SHOWS CIRCUIT FAILURE
OPEN ! !
----------------------------+----------+---------------------------------------
WRG: START IN PROGRESS ! 49-61-00 ! START IN PROGRESS SHOWS CIRCUIT FAIL.
----------------------------+----------+---------------------------------------
WRG: APU AVAILABLE ! 49-61-00 ! APU AVAIL SHOWS CIRCUIT FAILURE
----------------------------+----------+---------------------------------------
WRG: APU FAULT RELAY ! 49-61-00 ! APU FAULT RELAY SHOWS CIRCUIT FAILURE
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB INTERNAL FAILURE
----------------------------+----------+---------------------------------------
LOW OIL LEVEL ! 49-93-00 ! OIL LEVEL SHOWS LOW
----------------------------+----------+---------------------------------------
LOW OIL PRESS SW (8091KM) ! 49-94-14 ! LOP SWITCH SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
OIL TEMP SENSOR ! 49-94-15 ! OIL TEMP SNSR SHOWS OUT OF RANGE
(8092KM) ! !
----------------------------+----------+---------------------------------------
APU OIL HEATER (8093KM) ! 49-96-51 ! OIL HEATER FAILURE
----------------------------+----------+---------------------------------------

(5) CLASS 2 Faults

Table 2
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
POWER SUPPLY INTERRUPT ! 24-00-00 ! POWER SUPPLY INTERRUPT
----------------------------+----------+---------------------------------------
FIRE EMERG STOP RLY 6WF ! 26-22-00 ! LOW FUEL PRESSURE RELAY SHOWS
! ! OPEN/SHORT CIRCUIT
----------------------------+----------+---------------------------------------
LOW FUEL PRESSURE ! 28-20-00 ! FUEL PRESSURE SHOWS LOW DURING APU
! ! RUN
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! INLET FLAP SHOWS FLAP CLOSE CIRCUIT
(4015KM) ! ! OPEN/SHORT
! ! INLET FLAP SHOWS FLAP OPEN CIRCUIT
! ! OPEN/SHORT
! ! INLET FLAP SHOWS FLAP CLOSE HIGH
! ! CURRENT
! ! INLET FALP SHOWS FLAP FAILED TO FULLY
! ! CLOSE
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM) ! 49-23-51 ! IGV LVDT PRI/SEC SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
IGV ACTUATOR (8014KM)/ ! 49-23-51 ! IGV LVDT EXCITATION SHOWS FAILURE
ECB (59KD) ! !
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT (8022KM) ! 49-32-11 ! FUEL TEMP SENSOR SHOWS OUT OF RANGE
! ! FUEL RESOLVER PRI/SEC SHOWS OPEN
! ! CIRCUIT
! ! FUEL RESOLVER POSITION SHOWS INCORRECT
! ! POSITION
----------------------------+----------+---------------------------------------
FUEL CONTROL UNIT (8022KM)/! 49-32-11 ! FUEL RESOLVER EXCITATION SHOWS FAILURE
ECB (59KD) ! ! FUEL RESOLVER PRI/SEC SHOWS OPEN
----------------------------+----------+---------------------------------------
INLET PRESS XDCR(8048KM) ! 49-51-21 ! INLET PRESS SNSR SHOWS OUT OF RANGE
! ! INLET PRESS SNSR SHOWS < 6.5 PSIA
! ! ON GND
----------------------------+----------+---------------------------------------
LOAD CONTROL VALVE (8050KM)! 49-51-51 ! LOAD CONTROL VALVE SHOWS OPEN
! ! AND CLOSED
! ! LOAD CONTROL VALVE SHOWS NOT CLOSED
----------------------------+----------+---------------------------------------
WRG: LOAD VALVE OPEN ! 49-61-00 ! LCV OPEN SIGNAL SHOWS CIRCUIT FAILURE
OPEN ! !
----------------------------+----------+---------------------------------------
WRG: START IN PROGRESS ! 49-61-00 ! START IN PROGRESS SHOWS CIRCUIT FAIL.
----------------------------+----------+---------------------------------------
WRG: APU AVAILABLE ! 49-61-00 ! APU AVAIL SHOWS CIRCUIT FAILURE
----------------------------+----------+---------------------------------------
WRG: APU FAULT RELAY ! 49-61-00 ! APU FAULT RELAY SHOWS CIRCUIT FAILURE
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB INTERNAL FAILURE
----------------------------+----------+---------------------------------------
LOW OIL LEVEL ! 49-93-00 ! OIL LEVEL SHOWS LOW
----------------------------+----------+---------------------------------------
LOW OIL PRESS SW (8091KM) ! 49-94-14 ! LOP SWITCH SHOWS OPEN CIRCUIT
----------------------------+----------+---------------------------------------
OIL TEMP SENSOR ! 49-94-15 ! OIL TEMP SNSR SHOWS OUT OF RANGE
(8092KM) ! !
----------------------------+----------+---------------------------------------
APU OIL HEATER (8093KM) ! 49-96-51 ! OIL HEATER FAILURE
----------------------------+----------+---------------------------------------

(6) CLASS 3 Faults

Table 3
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
NO DEMAND DATA FROM ECS ! 21-63-34 ! ECS Zone Controller
! ! ECS Demand failure
----------------------------+----------+---------------------------------------
NO PACK DATA FROM ECS ! 21-63-34 ! ECS Zone Controller
! ! ECS Data failure
----------------------------+----------+---------------------------------------
NO DATA FROM CFDIU ! 31-32-34 ! AC ID failure, UTC failure,
! ! Date failure, BITE command failure
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! Inlet Flap shows open and switch
! ! closed
! ! Inlet Flap shows Flap open switch open
! ! Inlet Flap shows Flap closed switch
! ! open
----------------------------+----------+---------------------------------------
INLET TEMP SENSOR ! 49-23-14 ! T2 Sensor out-of-range
----------------------------+----------+---------------------------------------
CONTACTOR (5KA) ! 49-42-41 ! Main Start Contactor shows closed
----------------------------+----------+---------------------------------------
CONTACTOR (10KA) ! 49-42-42 ! Backup Start Contactor shows closed
----------------------------+----------+---------------------------------------
WRG: ACFT TYPE PIN PROG/ ! 49-61-00 ! A/C PIN Coding disagrees
ECB (59KD) ! !
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB internal failure
----------------------------+----------+---------------------------------------
SPEED SENSOR P26 ! 49-71-13 ! Speed Sensor 1/2 shows open circuit
! ! Speed Sensor 1/2 shows amplitude
! ! failure
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE 1 ! 49-72-15 ! EGT1 Sensor shows out-of-range low
! ! EGT1 Sensor disagrees with EGT2
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE 2 ! 49-72-15 ! EGT2 Sensor shows out-of-range low
! ! EGT2 Sensor disagrees with EGT1
----------------------------+----------+---------------------------------------
DATA MEMORY MODULE P20 ! 49-73-32 ! DMM shows failure
----------------------------+----------+---------------------------------------
LUBE PUMP FILTER SW P9/ ! 49-91-14 ! Oil Filter Switch shows elect. ground
GEN SCAV FILTER SW P5 ! !

(7) CLASS 3 Faults

Table 3
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
NO DEMAND DATA FROM ECS ! 21-63-34 ! ECS ZONE CONTROLLER
! ! ECS DEMAND FAILURE
----------------------------+----------+---------------------------------------
NO PACK DATA FROM ECS ! 21-63-34 ! ECS ZONE CONTROLLER PACK DATA FAILURE
! !
----------------------------+----------+---------------------------------------
NO DATA FROM CFDIU ! 31-32-34 ! CFDIU AC ID FAILURE
! ! CFDIU AC CONFIG FAILURE
! ! CFDIU FLIGHT PHASE FAILURE
! ! CFDIU GMT FAILURE
! ! CFDIU DATE FAILURE
! ! CFDIU BITE COMMAND FAILURE
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! INLET FLAP SHOWS FLAP OPEN AND FLAP
(4015KM) ! ! CLOSED
! ! INLET FLAP SHOWS FLAP CLOSED SWITCH
! ! OPEN
! ! INLET FLAP SHOWS FLAP OPEN SWITCH OPEN
----------------------------+----------+---------------------------------------
INLET TEMP SENSOR ! 49-23-14 ! INLET TEMP SENSOR SHOWS OUT OF RANGE
(8010KM) ! ! HIGH
! ! INLET TEMP SENSOR SHOWS OUT OF RANGE
! ! LOW
----------------------------+----------+---------------------------------------
LOAD COMPRESSR DISCHARGE ! 49-23-16 ! LCDT SENSOR SHOWS OUT OF RANGE LOW
TEMP SENSOR (8012KM) ! !
----------------------------+----------+---------------------------------------
CONTACTOR (5KA) ! 49-42-55 ! MAIN START CONTACTOR SHOWS CLOSED
----------------------------+----------+---------------------------------------
CONTACTOR (10KA) ! 49-42-55 ! BACKUP START CONTACTOR SHOWS CLOSED
----------------------------+----------+---------------------------------------
WRG: ACFT TYPE PIN PROG ! 49-61-00 ! A/C PIN CODING DISAGREES
/ ECB (59KD) ! !
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB INTERNAL FAILURE
----------------------------+----------+---------------------------------------
SPEED SENSOR (8060KM) ! 49-71-13 ! SPEED SENSOR 1 + 2 SHOWS OPEN CIRCUIT
! ! SPEED SENSOR 1 + 2 SHOWS AMPLITUDE
! ! FAILURE
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE (8057KM1) ! 49-72-15 ! EGT1 SENSOR DISAGREES WITH EGT2 SENSOR
! ! > 66C
! ! EGT1 SENSOR SHOWS OUT OF RANGE LOW
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE (8057KM2) ! 49-72-15 ! EGT2 SENSOR DISAGREES WITH EGT2 SENSOR
! ! > 66C
! ! EGT2 SENSOR SHOWS OUT OF RANGE LOW
----------------------------+----------+---------------------------------------
DATA MEMORY MODULE ! 49-73-32 ! DATA MEMORY MODULE SHOWS CHECKWORD
(8062KM) ! ! FAILURE
! ! DATA MEMORY MODULE SHOWS READ
! ! FAILURE
! ! DATA MEMORY MODULE SHOWS WRITE
! ! FAILURE
! ! DATA MEMORY MODULE SHOWS APU S/N
! ! DATA MEMORY MODULE SHOWS WRAP TEST
! ! FAILURE
----------------------------+----------+---------------------------------------
OIL FILTER SWITCHES ! 49-91-14 ! OIL FILTER SWITCH SHOWS ELECTRICAL
(8070KM)/(8071KM) ! ! GROUND

(8) CLASS 3 Faults

Table 3
-------------------------------------------------------------------------------
Text for CFDS Indication ! ATA ! BITE Detection (Failed LRUs)
============================+==========+=======================================
NO DEMAND DATA FROM ECS ! 21-63-34 ! ECS ZONE CONTROLLER
! ! ECS DEMAND FAILURE
----------------------------+----------+---------------------------------------
NO PACK DATA FROM ECS ! 21-63-34 ! ECS ZONE CONTROLLER
! ! ECS DATA FAILURE
----------------------------+----------+---------------------------------------
NO ICARE DATA FROM ECS ! 21-63-34 ! ECS ZONE CONTROLLER
ENG 1 ! ! ICARE ENG 1 DATA FAILURE
----------------------------+----------+---------------------------------------
NO ICARE DATA FROM ECS ! 21-63-34 ! ECS ZONE CONTROLLER
ENG 2 ! ! ICARE ENG 2 DATA FAILURE
----------------------------+----------+---------------------------------------
NO DATA FROM CFDIU ! 31-32-34 ! CFDIU AC ID FAILURE
! ! CFDIU AC CONFIG FAILURE
! ! CFDIU FLIGHT PHASE FAILURE
! ! CFDIU GMT FAILURE
! ! CFDIU DATE FAILURE
! ! CFDIU BITE COMMAND FAILURE
----------------------------+----------+---------------------------------------
AIR INTAKE FLAP ACTUATOR ! 49-16-51 ! INLET FLAP SHOWS FLAP OPEN AND FLAP
(4015KM) ! ! CLOSED
! ! INLET FLAP SHOWS FLAP CLOSED SWITCH
! ! OPEN
! ! INLET FLAP SHOWS FLAP OPEN SWITCH OPEN
----------------------------+----------+---------------------------------------
INLET TEMP SENSOR ! 49-23-14 ! INLET TEMP SENSOR SHOWS OUT OF RANGE
(8010KM) ! ! HIGH
! ! INLET TEMP SENSOR SHOWS OUT OF RANGE
! ! LOW
----------------------------+----------+---------------------------------------
LOAD COMPRESSR DISCHARGE ! 49-23-16 ! LCDT SENSOR SHOWS OUT OF RANGE LOW
TEMP SENSOR (8012KM) ! !
----------------------------+----------+---------------------------------------
CONTACTOR (5KA) ! 49-42-55 ! MAIN START CONTACTOR SHOWS CLOSED
----------------------------+----------+---------------------------------------
CONTACTOR (10KA) ! 49-42-55 ! BACKUP START CONTACTOR SHOWS CLOSED
----------------------------+----------+---------------------------------------
WRG: ACFT TYPE PIN PROG ! 49-61-00 ! A/C PIN CODING DISAGREES
/ ECB (59KD) ! !
----------------------------+----------+---------------------------------------
ECB (59KD) ! 49-61-34 ! ECB INTERNAL FAILURE
----------------------------+----------+---------------------------------------
SPEED SENSOR (8060KM) ! 49-71-13 ! SPEED SENSOR 1 + 2 SHOWS OPEN CIRCUIT
! ! SPEED SENSOR 1 + 2 SHOWS AMPLITUDE
! ! FAILURE
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE (8057KM1) ! 49-72-15 ! EGT1 SENSOR DISAGREES WITH EGT2 SENSOR
! ! > 66C
! ! EGT1 SENSOR SHOWS OUT OF RANGE LOW
----------------------------+----------+---------------------------------------
EGT TCPLE RAKE (8057KM2) ! 49-72-15 ! EGT2 SENSOR DISAGREES WITH EGT2 SENSOR
! ! > 66C
! ! EGT2 SENSOR SHOWS OUT OF RANGE LOW
----------------------------+----------+---------------------------------------
DATA MEMORY MODULE ! 49-73-32 ! DATA MEMORY MODULE SHOWS CHECKWORD
(8062KM) ! ! FAILURE
! ! DATA MEMORY MODULE SHOWS READ
! ! FAILURE
! ! DATA MEMORY MODULE SHOWS WRITE
! ! FAILURE
! ! DATA MEMORY MODULE SHOWS APU S/N
! ! DATA MEMORY MODULE SHOWS WRAP TEST
! ! FAILURE
----------------------------+----------+---------------------------------------
OIL FILTER SWITCHES ! 49-91-14 ! OIL FILTER SWITCH SHOWS ELECTRICAL
(8070KM)/(8071KM) ! ! GROUND

(9) APU SHUTDOWNS

Table 4
-------------------------------------------------------------------------------
Shutdown Text on ! Text for CFDS Indication ! Text for CFDS Indication
Shutdown page ! if no LRU failure found ! if LRU failure found on
! on Fault Tree (Default) ! Fault Tree
=====================+============================+============================
OVERSPEED ! FUEL CONTROL UNIT P19/ ! FUEL CONTROL UNIT P19/
! ECB (59KD) ! APU FUEL SUPPLY
---------------------+----------------------------+----------------------------
EMERGENCY ! !
---------------------+----------------------------+----------------------------
ECB FAILURE ! ! ECB (59KD)
---------------------+----------------------------+----------------------------
UNDERSPEED ! FCU/APU FUEL SUPPLY/ ! FUEL CONTROL UNIT/
! APU ROTATION ! APU FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! FUEL CONTROL UNIT P19
! +- - - - - - - - - - - - - -
! ! LOW FUEL PRESSURE
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
---------------------+----------------------------+----------------------------
OVERTEMPERATURE ! IGV ACTUATOR P21/ ! CHECK IGV ASSEMBLY/
(onspeed) ! ECB (59KD) ! IGV ACTUATOR P21
---------------------+----------------------------+----------------------------
OVERTEMPERATURE ! FUEL CONTROL UNIT P19/ ! FUEL CONTROL UNIT P19/
(start) ! FLOW DIVIDER ASSEMBLY ! APU FUEL SUPPLY
---------------------+----------------------------+----------------------------
SENSOR FAILURE ! ! EGT TCPLE RAKES 1 + 2
! +- - - - - - - - - - - - - -
! ! EGT TCPLE RAKE 1
! ! + ECB (59KD)
! +- - - - - - - - - - - - - -
! ! EGT TCPLE RAKE 2
! ! + ECB (59KD)
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
! +- - - - - - - - - - - - - -
! ! LOW OIL PRESSURE SW P14
! ! LOW OIL LEVEL
---------------------+----------------------------+----------------------------
LOW OIL PRESSURE ! LOP SW P14 / OIL PUMP / ! LOW OIL LEVEL
! DEOIL SOLENOID P15 !
---------------------+----------------------------+----------------------------
NO FLAME ! CHECK IGNITION SYSTEM / ! LOW FUEL PRESSURE
! FCU / ECB (59KD) !
! +- - - - - - - - - - - - - -
! ! FUEL CONTROL UNIT P19
! +- - - - - - - - - - - - - -
! ! FUEL CONTROL UNIT P19/
! ! APU FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! FLOW DIVIDER SOL P13
! +- - - - - - - - - - - - - -
! ! IGNITION EXCITER P10
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
---------------------+----------------------------+----------------------------
AIR INTAKE NOT OPEN ! ! AIR INTAKE FLAP ACTUATOR
---------------------+----------------------------+----------------------------
HIGH OIL ! OIL COOLER / !
TEMPERATURE ! COOLING FAN ASSEMBLY !
---------------------+----------------------------+----------------------------
NO ACCELERATION ! STARTER MOT (8KA) / ! ACFT BAT NOT SELECTED /
(no speed) ! APU ROTATION ! CONTACTOR (5KA)
! +- - - - - - - - - - - - - -
! ! CONTACTOR 10KA
! +- - - - - - - - - - - - - -
! ! APU OIL HEATER P7
! +- - - - - - - - - - - - - -
! ! STARTER MOTOR (8KA)
---------------------+----------------------------+----------------------------
INLET OVERHEAT ! CHECK APU INLET !
---------------------+----------------------------+----------------------------
LOSS OF SPEED ! ! SPEED SENSOR P26
! +- - - - - - - - - - - - - -
! ! SPEED SENSOR P26
! ! + ECB (59KD)
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
---------------------+----------------------------+----------------------------
NO ACCELERATION ! FUEL CONTROL UNIT P19 ! FUEL CONTROL UNIT P19 /
! ! APU FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
! +- - - - - - - - - - - - - -
! ! DEOIL SOLENOID P15
! +- - - - - - - - - - - - - -
! ! LOW FUEL PRESSURE
! +- - - - - - - - - - - - - -
! ! STARTER MOTOR (8KA)
! +- - - - - - - - - - - - - -
! ! CHECK IGV ASSEMBLY /
! ! IGV ACTUATOR P21
! +- - - - - - - - - - - - - -
! ! FLOW DIVIDER SOL P13
! +- - - - - - - - - - - - - -
! ! APU OIL HEATER P7
! +- - - - - - - - - - - - - -
! ! OIL TEMP SENSOR P11
---------------------+----------------------------+----------------------------
REVERSE FLOW ! DP XDCR P24/PT XDCR P21/ ! SURGE CONTROL VALVE P18
! SURGE CONTROL VALVE P18 !
---------------------+----------------------------+----------------------------
CLOGGED OIL FILTER ! ! LUBE PUMP FILTER P9 +
! ! GEN SCAV FILTER P5
---------------------+----------------------------+----------------------------
LOSS OF DC POWER ! POWER SUPPLY INTERRUPT !
---------------------+----------------------------+----------------------------

(10) APU SHUTDOWNS

Table 4
-------------------------------------------------------------------------------
Shutdown Text on ! Text for CFDS Indication ! Text for CFDS Indication
Shutdown page ! if no LRU failure found ! if LRU failure found on
! on Fault Tree (Default) ! Fault Tree
=====================+============================+============================
OVERSPEED ! FUEL CTRL UNIT (8022KM)/ ! FUEL CTRL UNIT (8022KM)/
! ECB (59KD) ! APU FUEL SUPPLY
---------------------+----------------------------+----------------------------
EMERGENCY ! !
---------------------+----------------------------+----------------------------
ECB FAILURE ! ! ECB (59KD)
---------------------+----------------------------+----------------------------
UNDERSPEED ! FCU (8022KM) / APU FUEL ! FCU (8022KM)/APU FUEL
! SUPPLY/APU ROTATION ! SUPPLY/APU ROTATION
! +- - - - - - - - - - - - - -
! ! FUEL CONTROL UNIT
! ! (8022KM)
! +- - - - - - - - - - - - - -
! ! LOW FUEL PRESSURE
! +- - - - - - - - - - - - - -
! ! FUEL CTRL UNIT(8022KM)/
! ! APU FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
---------------------+----------------------------+----------------------------
OVERTEMPERATURE ! IGV ACTUATOR(8014KM)/FCU ! CHECK IGV ASSEMBLY/
(onspeed) ! (8022KM) / ECB (59KD) ! IGV ACTUATOR (8014KM)
! +- - - - - - - - - - - - - -
! ! IGV ACTUATOR (8014KM)/
! ! ECB (59KD)
---------------------+----------------------------+----------------------------
OVERTEMPERATURE ! FUEL CTRL UNIT (8022KM)/ ! FUEL CTRL UNIT (8022KM)/
(start) ! FLOW DIVIDER (8024KM) ! APU FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! FUEL CTRL UNIT (8022KM)/
! ! FLOW DIVIDER (8024KM)
---------------------+----------------------------+----------------------------
SENSOR FAILURE ! ! EGT TCPLE RAKES (8057KM1)
! ! AND (8057KM2))
! +- - - - - - - - - - - - - -
! ! EGT TCPLE RAKE (8057KM1)
! ! AND ECB (59KD)
! +- - - - - - - - - - - - - -
! ! EGT TCPLE RAKE (8057KM2)
! ! AND ECB (59KD)
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
! +- - - - - - - - - - - - - -
! ! LOW OIL PRESS SW (8091KM)
! +- - - - - - - - - - - - - -
! ! LOW OIL LEVEL
---------------------+----------------------------+----------------------------
LOW OIL PRESSURE ! LOP SW(8091KM)/OIL PUMP ! LOW OIL LEVEL
! (8080KM)/DEOIL (8083KM) +----------------------------
! ! LOP SW(8091KM)/OIL PUMP
! ! (8060KM)/DEOIL (8083KM)
---------------------+----------------------------+----------------------------
NO FLAME ! CHECK IGNITION SYSTEM / ! LOW FUEL PRESSURE
! FCU(8022KM) / ECB(59KD) !
! +- - - - - - - - - - - - - -
! ! FUEL CONTROL UNIT
! ! (8022KM)
! +- - - - - - - - - - - - - -
! ! FUEL CTRL UNIT (8022KM)/
! ! APU FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! FLOW DIVIDER SOL (8025KM)
! +- - - - - - - - - - - - - -
! ! IGNITION UNIT (8030KM)
! +- - - - - - - - - - - - - -
! ! CHECK IGNITION SYSTEM /
! ! FCU(8022KM)/FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
---------------------+----------------------------+----------------------------
FLAP NOT OPEN ! ! AIR INTAKE FLAP ACTUATOR
! ! (4015KM)
---------------------+----------------------------+----------------------------
HIGH OIL ! OIL COOLER (8079KM) / ! OIL COOLER (8076KM)/
TEMPERATURE ! COOLING FAN (8053KM) ! COOLING FAN (8053KM)
---------------------+----------------------------+----------------------------
NO ACCELERATION ! STARTER MOTOR (8KA) / ! ACFT BAT NOT SELECTED /
(no speed) ! APU ROTATION ! CONTACTOR (5KA)
! +- - - - - - - - - - - - - -
! ! CONTACTOR 10KA
! +- - - - - - - - - - - - - -
! ! STARTER MOTOR (8KA)/
! ! APU ROTATION
! +- - - - - - - - - - - - - -
! ! APU OIL HEATER (8093KM)
! +- - - - - - - - - - - - - -
! ! STARTER MOTOR (8KA)
---------------------+----------------------------+----------------------------
INLET OVERHEAT ! CHECK APU INLET !
---------------------+----------------------------+----------------------------
LOSS OF SPEED ! ! SPEED SENSOR (8060KM)
! +- - - - - - - - - - - - - -
! ! SPEED SENSOR (8060KM)
! ! AND ECB (59KD)
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
---------------------+----------------------------+----------------------------
NO ACCELERATION ! FCU(8022KM)/FUEL SUPPLY ! FUEL CTRL UNIT (8022KM)/
! STARTER MOTOR (8KA) ! APU FUEL SUPPLY
! +- - - - - - - - - - - - - -
! ! ECB (59KD)
! +- - - - - - - - - - - - - -
! ! DEOIL SOLENOID (8083KM)
! +- - - - - - - - - - - - - -
! ! LOW FUEL PRESSURE
! +- - - - - - - - - - - - - -
! ! STARTER MOTOR (8KA)
! +- - - - - - - - - - - - - -
! ! CHECK IGV ASSEMBLY /
! ! IGV ACTUATOR (8014KM)
! +- - - - - - - - - - - - - -
! ! FLOW DIVIDER SOL (8025KM)
! +- - - - - - - - - - - - - -
! ! APU OIL HEATER (8093KM)
! +- - - - - - - - - - - - - -
! ! OIL SUMP TEMP SENSOR
! ! (8084KM)
---------------------+----------------------------+----------------------------
REVERSE FLOW ! PRESS XDCRS (8044KM) / ! SURGE CONTROL VALVE
! (8043KM) / SCV (8058KM) ! (8058KM)
! +- - - - - - - - - - - - - -
! ! PRESS XDCRS (8044KM)/
! ! (8043KM) / SCV (8058KM)
! +- - - - - - - - - - - - - -
---------------------+----------------------------+----------------------------
CLOGGED OIL FILTER ! ! GEN SCAV + LUBE FILTERS
! ! (8069KM) / (8076KM)
---------------------+----------------------------+----------------------------
LOSS OF DC POWER ! POWER SUPPLY INTERRUPT !
---------------------+----------------------------+----------------------------

D. Fault Code Numbers (FCN)
A fixed Fault Code Number (FCN) is allocated to each detectable fault. Each FCN (with some exceptions) is linked to a CFDS maintenance message. Both, the FCN and the CFDS maintenance message, are shown the LAST LEG REPORT, PREVIOUS FLIGHT REPORT etc..
In many occasions two or more FCNs are linked to the same CFDS message. This happens when different FCNs (faults) are in conjunction with the same Line Replaceable Unit (LRU).

Example:
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
021 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR P22 ! 2
----+----------------------------------------+-------------------------+-------
022 ! Inlet Press. Sensor shows < 8 psia ! INLET PRESS XDCR P22 ! 2
! on ground ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR P22 ! 2
! low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR P22 ! 2
! high ! !
You can find complete enumeration of all FCNs with their associated CFDS messages in Table 5 that follows:
A fixed Fault Code Number (FCN) is allocated to each detectable fault. Each FCN (with some exceptions) is linked to a CFDS maintenance message. Both, the FCN and the CFDS maintenance message, are shown the LAST LEG REPORT, PREVIOUS FLIGHT REPORT etc..
In many occasions two or more FCNs are linked to the same CFDS message. This happens when different FCNs (faults) are in conjunction with the same Line Replaceable Unit (LRU).

Example:
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
021 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR(8048KM)! 2
----+----------------------------------------+-------------------------+-------
022 ! Inlet Press. Sensor shows < 8 psia ! INLET PRESS XDCR(8048KM)! 2
! on ground ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR(8048KM)! 2
! low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR(8048KM)! 2
! high ! !
You can find complete enumeration of all FCNs with their associated CFDS messages in Table 5 that follows:
A fixed Fault Code Number (FCN) is allocated to each detectable fault. Each FCN (with some exceptions) is linked to a CFDS maintenance message. Both, the FCN and the CFDS maintenance message, are shown the LAST LEG REPORT, PREVIOUS FLIGHT REPORT etc..
In many occasions two or more FCNs are linked to the same CFDS message. This happens when different FCNs (faults) are in conjunction with the same Line Replaceable Unit (LRU).

Example:
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
021 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR(8048KM)! 2
----+----------------------------------------+-------------------------+-------
022 ! Inlet Press. Sensor shows < 6.5 psia ! INLET PRESS XDCR(8048KM)! 2
! on ground ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR(8048KM)! 2
! low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Press. Sensor shows out of range ! INLET PRESS XDCR(8048KM)! 2
! high ! !
You can find complete enumeration of all FCNs with their associated CFDS messages in Table 5 that follows:
(1) Fault Code Numbers (FCN)
Table 5
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
001 ! Speed Sensor shows amplitude failure ! SPEED SENSOR (8060KM) ! 1
----+----------------------------------------+-------------------------+-------
002 ! Speed Sensor 1 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
003 ! Speed Sensor 2 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
004 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
005 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
006 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
007 ! Speed Sensor 1 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
008 ! Speed Sensor 2 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
009 ! Speed Sensor 1 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
010 ! Speed Sensor 2 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
011 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
012 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
013 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
014 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
015 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
016 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
017 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
018 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range low ! (8043KM) !
----+----------------------------------------+-------------------------+-------
019 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range hight ! (8043KM) !
----+----------------------------------------+-------------------------+-------
020 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
021 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range ! !
----+----------------------------------------+-------------------------+-------
022 ! Inlet Pressure Sensor shows < 6.5 psia ! INLET PRESS XDCR(8048KM)! 2
! on gnd ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range high ! !
----+----------------------------------------+-------------------------+-------
025 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
026 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range ! !
----+----------------------------------------+-------------------------+-------
027 ! Total Pressure and Inlet Pressure ! PRESS XDCR(8044KM)/ ! 1
! disagree ! (8048KM) !
----+----------------------------------------+-------------------------+-------
028 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range low ! !
----+----------------------------------------+-------------------------+-------
029 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range high ! !
----+----------------------------------------+-------------------------+-------
030 ! Press XDCR wiring shows open circuit ! CHECK PRESS XDCR WIRING ! 1
! ! (8001KM) !
----+----------------------------------------+-------------------------+-------
031 ! Press XDCR wiring open or ECB ! CHECK PRESS XDCR WIRING ! 1
! internal failure ! (8001KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
032 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
033 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
034 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
035 ! Both EGT Sensors failed ! EGT TCPLE RAKES(8057KM1)! 1
! ! AND (8057KM2)
----+----------------------------------------+-------------------------+-------
036 ! EGT1 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM1)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
037 ! EGT2 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM2)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
038 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
039 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
040 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
041 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
042 ! EGT1 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM1)! 3
----+----------------------------------------+-------------------------+-------
043 ! EGT1 Sensor disagrees with EGT2 ! EGT TCPLE RAKE (8057KM1)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
044 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
045 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
046 ! EGT2 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM2)! 3
----+----------------------------------------+-------------------------+-------
047 ! EGT2 Sensor disagrees with EGT1 ! EGT TCPLE RAKE (8057KM2)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
048 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
049 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
050 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
051 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range low ! (8022KM) !
----+----------------------------------------+-------------------------+-------
052 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range high ! (8022KM) !
----+----------------------------------------+-------------------------+-------
053 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
054 ! Oil Temp sensor shows out of ! OIL SUMP TEMP SENSOR ! 2
! Range low ! (8084KM) !
----+----------------------------------------+-------------------------+-------
055 ! Oil Temp sensor shows out of ! OIL SUMP TEMP SENSOR ! 2
! Range high ! (8084KM) !
----+----------------------------------------+-------------------------+-------
056 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
057 ! Inlet Temp Sensor shows out ! INLET TEMP SENSOR ! 3
! of range low ! (8010KM) !
----+----------------------------------------+-------------------------+-------
058 ! Inlet Temp Sensor shows out of ! INLET TEMP SENSOR ! 3
! range high ! (8010KM) !
----+----------------------------------------+-------------------------+-------
059 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
060 ! Inlet Flap shows Flap open and ! AIR INTAKE FLAP ACTUATOR! 3
! Flap closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
061 ! Inlet Flap shows Flap open switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
062 ! Inlet Flap shows Flap open and Flap ! AIR INTAKE FLAP ACTUATOR! 3
! closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
063 ! Inlet Flap shows Flap closed switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
064 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
065 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
066 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
067 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
068 ! Inlet Flap shows Flap open high ! AIR INTAKE FLAP ACTUATOR! 1
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
069 ! Inlet Flap shows Flap close high ! AIR INTAKE FLAP ACTUATOR! 2
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
070 ! Inlet Flap shows Flap failed to ! AIR INTAKE FLAP ACTUATOR! 1
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
071 ! Inlet Flap shows Flap loss of open ! AIR INTAKE FLAP ACTUATOR! 1
! indication ! (4015KM) !
----+----------------------------------------+-------------------------+-------
072 ! Inlet Flap shows Flap failed to fully ! AIR INTAKE FLAP ACTUATOR! 2
! close ! (4015KM) !
----+----------------------------------------+-------------------------+-------
073 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
074 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
075 ! Fuel Resolver Excitation ! FUEL CONTR0L UNIT ! 2
! Circuit Failure ! (8022KM) / ECB (59KD) !
----+----------------------------------------+-------------------------+-------
076 ! Fuel Resolver primary shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
077 ! Fuel Resolver secondary shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
078 ! Fuel Resolver position shows ! FUEL CONTROL UNIT ! 2
! incorrect position ! (8022KM) !
----+----------------------------------------+-------------------------+-------
079 ! Fuel flow disagrees with command ! FUEL CTRL UNIT (8022KM)/! 1
! ! APU FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
080 ! IGV LVDT Excitation ! IGV ACTUATOR (8014KM) / ! 2
! Circuit Failure ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
081 ! IGV LVDT primary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
082 ! IGV LVDT secondary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
083 ! IGV position disagrees with command ! CHECK IGV ASSEMBLY/ ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
084 ! SCV LVDT Excitation Circuit Failure ! SURGE CONTROL VALVE ! 1
! ! (8058KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
085 ! SCV LVDT primary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
086 ! SCV LVDT secondary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
087 ! SCV position disagrees with command ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
088 ! Load Control Valve shows not open ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
089 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
090 ! Bleed Shutoff due to high temperature ! CHECK IGV ASSEMBLY / ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
091 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
092 ! NOT USED ! !
----+----------------------------------------+-------------------------+-------
093 ! NOT USED ! !
----+----------------------------------------+-------------------------+-------
094 ! NOT USED ! !
----+----------------------------------------+-------------------------+-------
095 ! A/C pin coding disagrees ! WRG: ACFT PIN PROG/ ! 3
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
096 ! Load Control Valve shows open switch ! LOAD CONTROL VALVE ! 2
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
097 ! Load Control Valve shows closed ! LOAD CONTROL VALVE ! 2
! switch failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
098 ! Low Oil Pressure switch shows ! LOW OIL PRESS SW(8091KM)! 2
! open circuit ! !
----+----------------------------------------+-------------------------+-------
099 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
100 ! Fuel Pressure Shows Low During APU Run ! LOW FUEL PRESSURE ! 2
----+----------------------------------------+-------------------------+-------
101 ! Oil filter switch shows ! OIL FILTER SWITCHES ! 3
! electrical ground ! (8070KM)/(8071KM) !
----+----------------------------------------+-------------------------+-------
102 ! Oil filter shows clogged ! GEN SCAV + LUBE FILTERS ! 1
! ! (8069KM) / (8076KM) !
----+----------------------------------------+-------------------------+-------
103 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
104 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
105 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
106 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
107 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
108 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
109 ! IGV Torque Motor shows open circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
110 ! IGV Torque Motor shows short circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
111 ! SCV Torque Motor shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
112 ! SCV Torque Motor shows short circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
113 ! Starter Motor shows open circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
114 ! Starter Motor shows short circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
115 ! Oil Heater failure ! APU OIL HEATER (8093KM) ! 2
----+----------------------------------------+-------------------------+-------
116 ! ! !
to ! N O T U S E D ! !
119 ! ! !
----+----------------------------------------+-------------------------+-------
120 ! Backup Start Contactor shows ! CONTACTOR (10KA) ! 1
! open circuit ! !
----+----------------------------------------+-------------------------+------
121 ! Backup Start Contactor shows closed ! CONTACTOR (10KA) ! 3
----+----------------------------------------+-------------------------+------
122 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+------
123 ! Main Start Contactor shows open ! ACFT BAT NOT SELECTED / ! 1
! circuit ! CONTACTOR (5KA) !
----+----------------------------------------+-------------------------+-------
124 ! Main Start Contactor shows closed ! CONTACTOR (5KA) ! 3
----+----------------------------------------+-------------------------+-------
125 ! Fuel Solenoid shows circuit failure ! FUEL CONTROL UNIT ! 1
! ! (8022KM)
----+----------------------------------------+-------------------------+-------
126 ! Flow Divider Solenoid shows ! FLOW DIVIDER SOL(8025KM)! 1
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
127 ! Load Valve Solenoid shows circuit ! LOAD CONTROL VALVE ! 1
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
128 ! Ignition Unit shows open circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
129 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
130 ! APU available shows circuit failure ! WRG: APU AVAILABLE ! 2
----+----------------------------------------+-------------------------+-------
131 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
132 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
133 ! Deoil Solenoid shows open circuit ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
134 ! Deoil Solenoid shows circuit failure ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
135 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
136 ! Fault Relay shows circuit failure ! WRG: APU FAULT RELAY ! 2
----+----------------------------------------+-------------------------+-------
137 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
138 ! Load Valve Open Signal shows circuit ! WRG: LOAD VALVE OPEN ! 2
! failure ! SIGNAL !
----+----------------------------------------+-------------------------+-------
139 ! Low Fuel Pressure Relay shows open ! FIRE EMERG STOP RLY(6WF)! 2
! circuit ! !
----+----------------------------------------+-------------------------+-------
140 ! Low Fuel Pressure Relay shows ! FIRE EMERG STOP RLY(6WF)! 2
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
141 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
142 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
143 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
144 ! APU Start in progress shows circuit ! WRG: START IN PROGRESS ! 2
! failure ! !
----+----------------------------------------+-------------------------+-------
145 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
146 ! Ignition unit shows short circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
147 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
148 ! ! !
to ! N O T U S E D ! !
149 ! ! !
----+----------------------------------------+-------------------------+-------
150 ! ECS Zone Controller ECS Demand failure ! NO DEMAND DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
151 ! ECS Zone Controller Pack Data failure ! NO PACK DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
152 ! CFDIU BITE Command failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
153 ! CFDIU Flight Phase failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
154 ! CFDIU AC Config failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
155 ! CFDIU Date failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
156 ! CFDIU GMT failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
157 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
158 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
159 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
160 ! ! !
to ! N O T U S E D ! !
169 ! ! !
----+----------------------------------------+-------------------------+-------
170 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
171 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
172 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
173 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
174 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
175 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
176 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
177 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
178 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
179 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
180 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
181 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
182 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
183 ! Power Supply Interrupt ! POWER SUPPLY INTERRUPT ! 2
----+----------------------------------------+-------------------------+-------
184 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
185 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
186 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
187 ! ! !
to ! N O T U S E D ! !
200 ! ! !
----+----------------------------------------+-------------------------+-------
201 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! /ECB (59KD) !
----+----------------------------------------+-------------------------+-------
202 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
203 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
204 ! No LRU Fault detected ! FCU (8022KM) / APU FUEL ! 1
! ! SUPPLY / APU ROTATION !
----+----------------------------------------+-------------------------+-------
205 ! No LRU Fault detected ! IGV ACTUATOR (8014KM)/ ! 1
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
206 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! / FLOW DIVIDER (8024KM) !
----+----------------------------------------+-------------------------+-------
207 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
208 ! No LRU Fault detected ! LOP SW(8091KM)/OIL PUMP ! 1
! ! (8080KM)/DEOIL (8083KM) !
----+----------------------------------------+-------------------------+-------
209 ! No LRU Fault detected ! CHECK IGNITION SYSTEM / ! 1
! ! FCU(8022KM)/FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
210 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
211 ! No LRU Fault detected ! OIL COOLER (8079KM) / ! 1
! ! COOLING FAN (8053KM) !
----+----------------------------------------+-------------------------+-------
212 ! No LRU Fault detected ! STARTER MOTOR (8KA) / ! 1
! ! APU ROTATION !
----+----------------------------------------+-------------------------+-------
213 ! No LRU Fault detected ! CHECK APU INLET ! 1
! ! !
----+----------------------------------------+-------------------------+-------
214 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
215 ! No LRU Fault detected ! FCU(8022KM)/FUEL SUPPLY/! 1
! ! STARTER MOTOR (8KA) !
----+----------------------------------------+-------------------------+-------
216 ! No LRU Fault detected ! PRESS XDCRS (8044KM) / ! 1
! ! (8043KM) / SCV (8058KM) !
----+----------------------------------------+-------------------------+-------
217 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
218 ! Power supply interrupt ! POWER SUPPLY INTERRUPT ! 1
----+----------------------------------------+-------------------------+-------
219 ! ! !
to ! N O T U S E D ! !
229 ! ! !
----+----------------------------------------+-------------------------+-------
230 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
231 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
232 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
233 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
234 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
235 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
236 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
237 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
238 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
239 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
240 ! Data Memory Module shows wrap test ! DATA MEMORY MODULE ! 3
! failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
241 ! Data Memory Module shows read failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
242 ! Data Memory Module shows checkword ! DATA MEMORY MODULE ! 3
! failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
243 ! Data Memory Module shows APU ! DATA MEMORY MODULE ! 3
! S/N failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
244 ! Data Memory Module shows write failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
245 ! Oil Level Shows Low ! LOW OIL LEVEL ! 2
----+----------------------------------------+-------------------------+-------
246 ! ! !
to ! N O T U S E D ! !
299 ! ! !
----+----------------------------------------+-------------------------+-------
300 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
301 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
302 ! -- ! -- ! 1
----+----------------------------------------+-------------------------+-------
303 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------

(2) Fault Code Numbers (FCN)
Table 5
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
001 ! Speed Sensor shows amplitude failure ! SPEED SENSOR (8060KM) ! 1
----+----------------------------------------+-------------------------+-------
002 ! Speed Sensor 1 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
003 ! Speed Sensor 2 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
004 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
005 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
006 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
007 ! Speed Sensor 1 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
008 ! Speed Sensor 2 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
009 ! Speed Sensor 1 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
010 ! Speed Sensor 2 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
011 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
012 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
013 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
014 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
015 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
016 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
017 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
018 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range low ! (8043KM) !
----+----------------------------------------+-------------------------+-------
019 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range hight ! (8043KM) !
----+----------------------------------------+-------------------------+-------
020 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
021 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range ! !
----+----------------------------------------+-------------------------+-------
022 ! Inlet Pressure Sensor shows < 6.5 psia ! INLET PRESS XDCR(8048KM)! 2
! on gnd ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range high ! !
----+----------------------------------------+-------------------------+-------
025 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
026 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range ! !
----+----------------------------------------+-------------------------+-------
027 ! Total Pressure and Inlet Pressure ! PRESS XDCR(8044KM)/ ! 1
! disagree ! (8048KM) !
----+----------------------------------------+-------------------------+-------
028 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range low ! !
----+----------------------------------------+-------------------------+-------
029 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range high ! !
----+----------------------------------------+-------------------------+-------
030 ! Press XDCR wiring shows open circuit ! CHECK PRESS XDCR WIRING ! 1
! ! (8001KM) !
----+----------------------------------------+-------------------------+-------
031 ! Press XDCR wiring short or ECB ! CHECK PRESS XDCR WIRING ! 1
! internal failure ! (8001KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
032 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
033 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
034 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
035 ! Both EGT Sensors failed ! EGT TCPLE RAKES(8057KM1)! 1
! ! AND (8057KM2)
----+----------------------------------------+-------------------------+-------
036 ! EGT1 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM1)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
037 ! EGT2 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM2)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
038 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
039 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
040 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
041 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
042 ! EGT1 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM1)! 3
----+----------------------------------------+-------------------------+-------
043 ! EGT1 Sensor disagrees with EGT2 ! EGT TCPLE RAKE (8057KM1)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
044 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
045 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
046 ! EGT2 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM2)! 3
----+----------------------------------------+-------------------------+-------
047 ! EGT2 Sensor disagrees with EGT1 ! EGT TCPLE RAKE (8057KM2)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
048 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
049 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
050 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
051 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range low ! (8022KM) !
----+----------------------------------------+-------------------------+-------
052 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range high ! (8022KM) !
----+----------------------------------------+-------------------------+-------
053 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
054 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range low ! (8092KM) !
----+----------------------------------------+-------------------------+-------
055 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range high ! (8092KM) !
----+----------------------------------------+-------------------------+-------
056 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
057 ! Inlet Temp Sensor shows out ! INLET TEMP SENSOR ! 3
! of range low ! (8010KM) !
----+----------------------------------------+-------------------------+-------
058 ! Inlet Temp Sensor shows out of ! INLET TEMP SENSOR ! 3
! range high ! (8010KM) !
----+----------------------------------------+-------------------------+-------
059 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
060 ! Inlet Flap shows Flap open and ! AIR INTAKE FLAP ACTUATOR! 3
! Flap closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
061 ! Inlet Flap shows Flap open switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
062 ! Inlet Flap shows Flap open and Flap ! AIR INTAKE FLAP ACTUATOR! 3
! closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
063 ! Inlet Flap shows Flap closed switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
064 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
065 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
066 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
067 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
068 ! Inlet Flap shows Flap open high ! AIR INTAKE FLAP ACTUATOR! 1
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
069 ! Inlet Flap shows Flap close high ! AIR INTAKE FLAP ACTUATOR! 2
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
070 ! Inlet Flap shows Flap failed to ! AIR INTAKE FLAP ACTUATOR! 1
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
071 ! Inlet Flap shows Flap loss of open ! AIR INTAKE FLAP ACTUATOR! 1
! indication ! (4015KM) !
----+----------------------------------------+-------------------------+-------
072 ! Inlet Flap shows Flap failed to fully ! AIR INTAKE FLAP ACTUATOR! 2
! close ! (4015KM) !
----+----------------------------------------+-------------------------+-------
073 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
074 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
075 ! Fuel Resolver Excitation ! FUEL CONTR0L UNIT ! 2
! Circuit Failure ! (8022KM) / ECB (59KD) !
----+----------------------------------------+-------------------------+-------
076 ! Fuel Resolver primary shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
077 ! Fuel Resolver secondary shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
078 ! Fuel Resolver position shows ! FUEL CONTROL UNIT ! 2
! incorrect position ! (8022KM) !
----+----------------------------------------+-------------------------+-------
079 ! Fuel flow disagrees with command ! FUEL CTRL UNIT (8022KM)/! 1
! ! APU FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
080 ! IGV LVDT Excitation ! IGV ACTUATOR (8014KM) / ! 2
! Circuit Failure ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
081 ! IGV LVDT primary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
082 ! IGV LVDT secondary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
083 ! IGV position disagrees with command ! CHECK IGV ASSEMBLY/ ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
084 ! SCV LVDT Excitation Circuit Failure ! SURGE CONTROL VALVE ! 1
! ! (8058KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
085 ! SCV LVDT primary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
086 ! SCV LVDT secondary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
087 ! SCV position disagrees with command ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
088 ! Load Control Valve shows not open ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
089 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
090 ! Bleed Shutoff due to high temperature ! CHECK IGV ASSEMBLY / ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
091 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
092 ! Load Control Valve shows not closed ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
093 ! Load Control Valve shows open and ! LOAD CONTROL VALVE ! 2
! closed ! (8050KM) !
----+----------------------------------------+-------------------------+-------
094 ! NOT USED ! !
----+----------------------------------------+-------------------------+-------
095 ! A/C pin coding disagrees ! WRG: ACFT PIN PROG/ ! 3
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
096 ! Load Control Valve shows open switch ! LOAD CONTROL VALVE ! 2
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
097 ! Load Control Valve shows closed ! LOAD CONTROL VALVE ! 2
! switch failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
098 ! Low Oil Pressure switch shows ! LOW OIL PRESS SW(8091KM)! 2
! open circuit ! !
----+----------------------------------------+-------------------------+-------
099 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
100 ! Fuel Pressure Shows Low During APU Run ! LOW FUEL PRESSURE ! 2
----+----------------------------------------+-------------------------+-------
101 ! Oil filter switch shows ! OIL FILTER SWITCHES ! 3
! electrical ground ! (8070KM)/(8071KM) !
----+----------------------------------------+-------------------------+-------
102 ! Oil filter shows clogged ! GEN SCAV + LUBE FILTERS ! 1
! ! (8069KM) / (8076KM) !
----+----------------------------------------+-------------------------+-------
103 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
104 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
105 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
106 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
107 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
108 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
109 ! IGV Torque Motor shows open circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
110 ! IGV Torque Motor shows short circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
111 ! SCV Torque Motor shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
112 ! SCV Torque Motor shows short circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
113 ! Starter Motor shows open circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
114 ! Starter Motor shows short circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
115 ! Oil Heater failure ! APU OIL HEATER (8093KM) ! 2
----+----------------------------------------+-------------------------+-------
116 ! ! !
to ! N O T U S E D ! !
119 ! ! !
----+----------------------------------------+-------------------------+-------
120 ! Backup Start Contactor shows ! CONTACTOR (10KA) ! 1
! open circuit ! !
----+----------------------------------------+-------------------------+------
121 ! Backup Start Contactor shows closed ! CONTACTOR (10KA) ! 3
----+----------------------------------------+-------------------------+------
122 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+------
123 ! Main Start Contactor shows open ! ACFT BAT NOT SELECTED / ! 1
! circuit ! CONTACTOR (5KA) !
----+----------------------------------------+-------------------------+-------
124 ! Main Start Contactor shows closed ! CONTACTOR (5KA) ! 3
----+----------------------------------------+-------------------------+-------
125 ! Fuel Solenoid shows circuit failure ! FUEL CONTROL UNIT ! 1
! ! (8022KM)
----+----------------------------------------+-------------------------+-------
126 ! Flow Divider Solenoid shows ! FLOW DIVIDER SOL(8025KM)! 1
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
127 ! Load Valve Solenoid shows circuit ! LOAD CONTROL VALVE ! 1
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
128 ! Ignition Unit shows open circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
129 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
130 ! APU available shows circuit failure ! WRG: APU AVAILABLE ! 2
----+----------------------------------------+-------------------------+-------
131 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
132 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
133 ! Deoil Solenoid shows open circuit ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
134 ! Deoil Solenoid shows circuit failure ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
135 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
136 ! Fault Relay shows circuit failure ! WRG: APU FAULT RELAY ! 2
----+----------------------------------------+-------------------------+-------
137 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
138 ! Load Valve Open Signal shows circuit ! WRG: LOAD VALVE OPEN ! 2
! failure ! SIGNAL !
----+----------------------------------------+-------------------------+-------
139 ! Low Fuel Pressure Relay shows open ! FIRE EMERG STOP RLY(6WF)! 2
! circuit ! !
----+----------------------------------------+-------------------------+-------
140 ! Low Fuel Pressure Relay shows ! FIRE EMERG STOP RLY(6WF)! 2
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
141 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
142 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
143 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
144 ! APU Start in progress shows circuit ! WRG: START IN PROGRESS ! 2
! failure ! !
----+----------------------------------------+-------------------------+-------
145 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
146 ! Ignition unit shows short circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
147 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
148 ! ! !
to ! N O T U S E D ! !
149 ! ! !
----+----------------------------------------+-------------------------+-------
150 ! ECS Zone Controller ECS Demand failure ! NO DEMAND DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
151 ! ECS Zone Controller Pack Data failure ! NO PACK DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
152 ! CFDIU BITE Command failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
153 ! CFDIU Flight Phase failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
154 ! CFDIU AC Config failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
155 ! CFDIU Date failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
156 ! CFDIU GMT failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
157 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
158 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
159 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
160 ! ! !
to ! N O T U S E D ! !
169 ! ! !
----+----------------------------------------+-------------------------+-------
170 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
171 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
172 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
173 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
174 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
175 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
176 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
177 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
178 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
179 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
180 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
181 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
182 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
183 ! Power Supply Interrupt ! POWER SUPPLY INTERRUPT ! 2
----+----------------------------------------+-------------------------+-------
184 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
185 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
186 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
187 ! ! !
to ! N O T U S E D ! !
200 ! ! !
----+----------------------------------------+-------------------------+-------
201 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! /ECB (59KD) !
----+----------------------------------------+-------------------------+-------
202 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
203 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
204 ! No LRU Fault detected ! FCU (8022KM) / APU FUEL ! 1
! ! SUPPLY / APU ROTATION !
----+----------------------------------------+-------------------------+-------
205 ! No LRU Fault detected ! IGV ACTUATOR (8014KM)/ ! 1
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
206 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! / FLOW DIVIDER (8024KM) !
----+----------------------------------------+-------------------------+-------
207 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
208 ! No LRU Fault detected ! LOP SW(8091KM)/OIL PUMP ! 1
! ! (8080KM)/DEOIL (8083KM) !
----+----------------------------------------+-------------------------+-------
209 ! No LRU Fault detected ! CHECK IGNITION SYSTEM / ! 1
! ! FCU(8022KM)/FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
210 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
211 ! No LRU Fault detected ! OIL COOLER (8079KM) / ! 1
! ! COOLING FAN (8053KM) !
----+----------------------------------------+-------------------------+-------
212 ! No LRU Fault detected ! STARTER MOTOR (8KA) / ! 1
! ! APU ROTATION !
----+----------------------------------------+-------------------------+-------
213 ! No LRU Fault detected ! CHECK APU INLET ! 1
! ! !
----+----------------------------------------+-------------------------+-------
214 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
215 ! No LRU Fault detected ! FCU(8022KM)/FUEL SUPPLY/! 1
! ! STARTER MOTOR (8KA) !
----+----------------------------------------+-------------------------+-------
216 ! No LRU Fault detected ! PRESS XDCRS (8044KM) / ! 1
! ! (8043KM) / SCV (8058KM) !
----+----------------------------------------+-------------------------+-------
217 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
218 ! Power supply interrupt ! POWER SUPPLY INTERRUPT ! 1
----+----------------------------------------+-------------------------+-------
219 ! ! !
to ! N O T U S E D ! !
229 ! ! !
----+----------------------------------------+-------------------------+-------
230 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
231 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
232 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
233 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
234 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
235 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
236 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
237 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
238 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
239 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
240 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
241 ! Data Memory Module shows read failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
242 ! Data Memory Module shows checkword ! DATA MEMORY MODULE ! 3
! failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
243 ! Data Memory Module shows APU ! DATA MEMORY MODULE ! 3
! S/N failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
244 ! Data Memory Module shows write failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
245 ! Oil Level Shows Low ! LOW OIL LEVEL ! 2
----+----------------------------------------+-------------------------+-------
246 ! ! !
to ! N O T U S E D ! !
299 ! ! !
----+----------------------------------------+-------------------------+-------
300 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
301 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
302 ! -- ! -- ! 1
----+----------------------------------------+-------------------------+-------
303 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------

(3) Fault Code Numbers (FCN)
Table 5
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
001 ! Speed Sensor shows amplitude failure ! SPEED SENSOR (8060KM) ! 1
----+----------------------------------------+-------------------------+-------
002 ! Speed Sensor 1 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
003 ! Speed Sensor 2 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
004 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
005 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
006 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
007 ! Speed Sensor 1 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
008 ! Speed Sensor 2 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
009 ! Speed Sensor 1 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
010 ! Speed Sensor 2 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
011 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
012 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
013 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
014 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
015 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
016 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
017 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
018 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range low ! (8043KM) !
----+----------------------------------------+-------------------------+-------
019 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range hight ! (8043KM) !
----+----------------------------------------+-------------------------+-------
020 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
021 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range ! !
----+----------------------------------------+-------------------------+-------
022 ! Inlet Pressure Sensor shows < 6.5 psia ! INLET PRESS XDCR(8048KM)! 2
! on gnd ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range high ! !
----+----------------------------------------+-------------------------+-------
025 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
026 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range ! !
----+----------------------------------------+-------------------------+-------
027 ! Total Pressure and Inlet Pressure ! PRESS XDCR(8044KM)/ ! 1
! disagree ! (8048KM) !
----+----------------------------------------+-------------------------+-------
028 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range low ! !
----+----------------------------------------+-------------------------+-------
029 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range high ! !
----+----------------------------------------+-------------------------+-------
030 ! Press XDCR wiring shows open circuit ! CHECK PRESS XDCR WIRING ! 1
! ! (8001KM) !
----+----------------------------------------+-------------------------+-------
031 ! Press XDCR wiring short or ECB ! CHECK PRESS XDCR WIRING ! 1
! internal failure ! (8001KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
032 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
033 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
034 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
035 ! Both EGT Sensors failed ! EGT TCPLE RAKES(8057KM1)! 1
! ! AND (8057KM2)
----+----------------------------------------+-------------------------+-------
036 ! EGT1 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM1)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
037 ! EGT2 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM2)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
038 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
039 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
040 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
041 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
042 ! EGT1 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM1)! 3
----+----------------------------------------+-------------------------+-------
043 ! EGT1 Sensor disagrees with EGT2 ! EGT TCPLE RAKE (8057KM1)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
044 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
045 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
046 ! EGT2 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM2)! 3
----+----------------------------------------+-------------------------+-------
047 ! EGT2 Sensor disagrees with EGT1 ! EGT TCPLE RAKE (8057KM2)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
048 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
049 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
050 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
051 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range low ! (8022KM) !
----+----------------------------------------+-------------------------+-------
052 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range high ! (8022KM) !
----+----------------------------------------+-------------------------+-------
053 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
054 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range low ! (8092KM) !
----+----------------------------------------+-------------------------+-------
055 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range high ! (8092KM) !
----+----------------------------------------+-------------------------+-------
056 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
057 ! Inlet Temp Sensor shows out ! INLET TEMP SENSOR ! 3
! of range low ! (8010KM) !
----+----------------------------------------+-------------------------+-------
058 ! Inlet Temp Sensor shows out of ! INLET TEMP SENSOR ! 3
! range high ! (8010KM) !
----+----------------------------------------+-------------------------+-------
059 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
060 ! Inlet Flap shows Flap open and ! AIR INTAKE FLAP ACTUATOR! 3
! Flap closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
061 ! Inlet Flap shows Flap open switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
062 ! Inlet Flap shows Flap open and Flap ! AIR INTAKE FLAP ACTUATOR! 3
! closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
063 ! Inlet Flap shows Flap closed switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
064 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
065 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
066 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
067 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
068 ! Inlet Flap shows Flap open high ! AIR INTAKE FLAP ACTUATOR! 1
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
069 ! Inlet Flap shows Flap close high ! AIR INTAKE FLAP ACTUATOR! 2
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
070 ! Inlet Flap shows Flap failed to ! AIR INTAKE FLAP ACTUATOR! 1
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
071 ! Inlet Flap shows Flap loss of open ! AIR INTAKE FLAP ACTUATOR! 1
! indication ! (4015KM) !
----+----------------------------------------+-------------------------+-------
072 ! Inlet Flap shows Flap failed to fully ! AIR INTAKE FLAP ACTUATOR! 2
! close ! (4015KM) !
----+----------------------------------------+-------------------------+-------
073 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
074 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
075 ! Fuel Resolver Excitation ! FUEL CONTR0L UNIT ! 2
! Circuit Failure ! (8022KM) / ECB (59KD) !
----+----------------------------------------+-------------------------+-------
076 ! Fuel Resolver primary shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
077 ! Fuel Resolver secondary shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
078 ! Fuel Resolver position shows ! FUEL CONTROL UNIT ! 2
! incorrect position ! (8022KM) !
----+----------------------------------------+-------------------------+-------
079 ! Fuel flow disagrees with command ! FUEL CTRL UNIT (8022KM)/! 1
! ! APU FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
080 ! IGV LVDT Excitation ! IGV ACTUATOR (8014KM) / ! 2
! Circuit Failure ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
081 ! IGV LVDT primary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
082 ! IGV LVDT secondary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
083 ! IGV position disagrees with command ! CHECK IGV ASSEMBLY/ ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
084 ! SCV LVDT Excitation Circuit Failure ! SURGE CONTROL VALVE ! 1
! ! (8058KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
085 ! SCV LVDT primary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
086 ! SCV LVDT secondary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
087 ! SCV position disagrees with command ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
088 ! Load Control Valve shows not open ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
089 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
090 ! Bleed Shutoff due to high temperature ! CHECK IGV ASSEMBLY / ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
091 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
092 ! Load Control Valve shows not closed ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
093 ! Load Control Valve shows open and ! LOAD CONTROL VALVE ! 2
! closed ! (8050KM) !
----+----------------------------------------+-------------------------+-------
094 ! NOT USED ! !
----+----------------------------------------+-------------------------+-------
095 ! A/C pin coding disagrees ! WRG: ACFT PIN PROG/ ! 3
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
096 ! Load Control Valve shows open switch ! LOAD CONTROL VALVE ! 2
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
097 ! Load Control Valve shows closed ! LOAD CONTROL VALVE ! 2
! switch failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
098 ! Low Oil Pressure switch shows ! LOW OIL PRESS SW(8091KM)! 2
! open circuit ! !
----+----------------------------------------+-------------------------+-------
099 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
100 ! Fuel Pressure Shows Low During APU Run ! LOW FUEL PRESSURE ! 2
----+----------------------------------------+-------------------------+-------
101 ! Oil filter switch shows ! OIL FILTER SWITCHES ! 3
! electrical ground ! (8070KM)/(8071KM) !
----+----------------------------------------+-------------------------+-------
102 ! Oil filter shows clogged ! GEN SCAV + LUBE FILTERS ! 1
! ! (8069KM) / (8076KM) !
----+----------------------------------------+-------------------------+-------
103 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
104 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
105 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
106 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
107 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
108 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
109 ! IGV Torque Motor shows open circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
110 ! IGV Torque Motor shows short circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
111 ! SCV Torque Motor shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
112 ! SCV Torque Motor shows short circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
113 ! Starter Motor shows open circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
114 ! Starter Motor shows short circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
115 ! Oil Heater failure ! APU OIL HEATER (8093KM) ! 2
----+----------------------------------------+-------------------------+-------
116 ! ! !
to ! N O T U S E D ! !
119 ! ! !
----+----------------------------------------+-------------------------+-------
120 ! Backup Start Contactor shows ! CONTACTOR (10KA) ! 1
! open circuit ! !
----+----------------------------------------+-------------------------+------
121 ! Backup Start Contactor shows closed ! CONTACTOR (10KA) ! 3
----+----------------------------------------+-------------------------+------
122 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+------
123 ! Main Start Contactor shows open ! ACFT BAT NOT SELECTED / ! 1
! circuit ! CONTACTOR (5KA) !
----+----------------------------------------+-------------------------+-------
124 ! Main Start Contactor shows closed ! CONTACTOR (5KA) ! 3
----+----------------------------------------+-------------------------+-------
125 ! Fuel Solenoid shows circuit failure ! FUEL CONTROL UNIT ! 1
! ! (8022KM)
----+----------------------------------------+-------------------------+-------
126 ! Flow Divider Solenoid shows ! FLOW DIVIDER SOL(8025KM)! 1
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
127 ! Load Valve Solenoid shows circuit ! LOAD CONTROL VALVE ! 1
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
128 ! Ignition Unit shows open circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
129 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
130 ! APU available shows circuit failure ! WRG: APU AVAILABLE ! 2
----+----------------------------------------+-------------------------+-------
131 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
132 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
133 ! Deoil Solenoid shows open circuit ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
134 ! Deoil Solenoid shows circuit failure ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
135 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
136 ! Fault Relay shows circuit failure ! WRG: APU FAULT RELAY ! 2
----+----------------------------------------+-------------------------+-------
137 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
138 ! Load Valve Open Signal shows circuit ! WRG: LOAD VALVE OPEN ! 2
! failure ! SIGNAL !
----+----------------------------------------+-------------------------+-------
139 ! Low Fuel Pressure Relay shows open ! FIRE EMERG STOP RLY(6WF)! 2
! circuit ! !
----+----------------------------------------+-------------------------+-------
140 ! Low Fuel Pressure Relay shows ! FIRE EMERG STOP RLY(6WF)! 2
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
141 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
142 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
143 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
144 ! APU Start in progress shows circuit ! WRG: START IN PROGRESS ! 2
! failure ! !
----+----------------------------------------+-------------------------+-------
145 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
146 ! Ignition unit shows short circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
147 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
148 ! ! !
to ! N O T U S E D ! !
149 ! ! !
----+----------------------------------------+-------------------------+-------
150 ! ECS Zone Controller ECS Demand failure ! NO DEMAND DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
151 ! ECS Zone Controller Pack Data failure ! NO PACK DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
152 ! CFDIU BITE Command failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
153 ! CFDIU Flight Phase failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
154 ! CFDIU AC Config failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
155 ! CFDIU Date failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
156 ! CFDIU GMT failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
157 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
158 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
159 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
160 ! ! !
to ! N O T U S E D ! !
169 ! ! !
----+----------------------------------------+-------------------------+-------
170 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
171 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
172 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
173 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
174 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
175 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
176 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
177 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
178 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
179 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
180 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
181 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
182 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
183 ! Power Supply Interrupt ! POWER SUPPLY INTERRUPT ! 2
----+----------------------------------------+-------------------------+-------
184 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
185 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
186 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
187 ! ! !
to ! N O T U S E D ! !
200 ! ! !
----+----------------------------------------+-------------------------+-------
201 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! /ECB (59KD) !
----+----------------------------------------+-------------------------+-------
202 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
203 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
204 ! No LRU Fault detected ! FCU (8022KM) / APU FUEL ! 1
! ! SUPPLY / APU ROTATION !
----+----------------------------------------+-------------------------+-------
205 ! No LRU Fault detected ! IGV ACTUATOR (8014KM)/ ! 1
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
206 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! / FLOW DIVIDER (8024KM) !
----+----------------------------------------+-------------------------+-------
207 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
208 ! No LRU Fault detected ! LOP SW(8091KM)/OIL PUMP ! 1
! ! (8080KM)/DEOIL (8083KM) !
----+----------------------------------------+-------------------------+-------
209 ! No LRU Fault detected ! CHECK IGNITION SYSTEM / ! 1
! ! FCU(8022KM)/FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
210 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
211 ! No LRU Fault detected ! OIL COOLER (8079KM) / ! 1
! ! COOLING FAN (8053KM) !
----+----------------------------------------+-------------------------+-------
212 ! No LRU Fault detected ! STARTER MOTOR (8KA) / ! 1
! ! APU ROTATION !
----+----------------------------------------+-------------------------+-------
213 ! No LRU Fault detected ! CHECK APU INLET ! 1
! ! !
----+----------------------------------------+-------------------------+-------
214 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
215 ! No LRU Fault detected ! FCU(8022KM)/FUEL SUPPLY/! 1
! ! STARTER MOTOR (8KA) !
----+----------------------------------------+-------------------------+-------
216 ! No LRU Fault detected ! PRESS XDCRS (8044KM) / ! 1
! ! (8043KM) / SCV (8058KM) !
----+----------------------------------------+-------------------------+-------
217 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
218 ! Power supply interrupt ! POWER SUPPLY INTERRUPT ! 1
----+----------------------------------------+-------------------------+-------
219 ! ! !
to ! N O T U S E D ! !
229 ! ! !
----+----------------------------------------+-------------------------+-------
230 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
231 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
232 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
233 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
234 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
235 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
236 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
237 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
238 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
239 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
240 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
241 ! Data Memory Module shows read failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
242 ! Data Memory Module shows checkword ! DATA MEMORY MODULE ! 3
! failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
243 ! Data Memory Module shows APU ! DATA MEMORY MODULE ! 3
! S/N failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
244 ! Data Memory Module shows write failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
245 ! Oil Level Shows Low ! LOW OIL LEVEL ! 2
----+----------------------------------------+-------------------------+-------
246 ! ! !
to ! N O T U S E D ! !
299 ! ! !
----+----------------------------------------+-------------------------+-------
300 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
301 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
302 ! -- ! -- ! 1
----+----------------------------------------+-------------------------+-------
303 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------

(4) Fault Code Numbers (FCN)
Table 5
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
001 ! Speed Sensor shows amplitude failure ! SPEED SENSOR (8060KM) ! 1
----+----------------------------------------+-------------------------+-------
002 ! Speed Sensor 1 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
003 ! Speed Sensor 2 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
004 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
005 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
006 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
007 ! Speed Sensor 1 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
008 ! Speed Sensor 2 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
009 ! Speed Sensor 1 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
010 ! Speed Sensor 2 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
011 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
012 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
013 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
014 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
015 ! N O T U S E D ! ! 1
----+----------------------------------------+-------------------------+-------
016 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
017 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
018 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range low ! (8043KM) !
----+----------------------------------------+-------------------------+-------
019 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range hight ! (8043KM) !
----+----------------------------------------+-------------------------+-------
020 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
021 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range ! !
----+----------------------------------------+-------------------------+-------
022 ! Inlet Pressure Sensor shows < 6.5 psia ! INLET PRESS XDCR(8048KM)! 2
! on gnd ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range high ! !
----+----------------------------------------+-------------------------+-------
025 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
026 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range ! !
----+----------------------------------------+-------------------------+-------
027 ! Total Pressure and Inlet Pressure ! PRESS XDCR(8044KM)/ ! 1
! disagree ! (8048KM) !
----+----------------------------------------+-------------------------+-------
028 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range low ! !
----+----------------------------------------+-------------------------+-------
029 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range high ! !
----+----------------------------------------+-------------------------+-------
030 ! Press XDCR wiring shows open circuit ! CHECK PRESS XDCR WIRING ! 1
! ! (8001KM) !
----+----------------------------------------+-------------------------+-------
031 ! Press XDCR wiring short or ECB ! CHECK PRESS XDCR WIRING ! 1
! internal failure ! (8001KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
032 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
033 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
034 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
035 ! Both EGT Sensors failed ! EGT TCPLE RAKES(8057KM1)! 1
! ! AND (8057KM2)
----+----------------------------------------+-------------------------+-------
036 ! EGT1 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM1)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
037 ! EGT2 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM2)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
038 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
039 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
040 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
041 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
042 ! EGT1 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM1)! 3
----+----------------------------------------+-------------------------+-------
043 ! EGT1 Sensor disagrees with EGT2 ! EGT TCPLE RAKE (8057KM1)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
044 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
045 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
046 ! EGT2 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM2)! 3
----+----------------------------------------+-------------------------+-------
047 ! EGT2 Sensor disagrees with EGT1 ! EGT TCPLE RAKE (8057KM2)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
048 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
049 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
050 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
051 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range low ! (8022KM) !
----+----------------------------------------+-------------------------+-------
052 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range high ! (8022KM) !
----+----------------------------------------+-------------------------+-------
053 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
054 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range low ! (8092KM) !
----+----------------------------------------+-------------------------+-------
055 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range high ! (8092KM) !
----+----------------------------------------+-------------------------+-------
056 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
057 ! Inlet Temp Sensor shows out ! INLET TEMP SENSOR ! 3
! of range low ! (8010KM) !
----+----------------------------------------+-------------------------+-------
058 ! Inlet Temp Sensor shows out of ! INLET TEMP SENSOR ! 3
! range high ! (8010KM) !
----+----------------------------------------+-------------------------+-------
059 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
060 ! Inlet Flap shows Flap open and ! AIR INTAKE FLAP ACTUATOR! 3
! Flap closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
061 ! Inlet Flap shows Flap open switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
062 ! Inlet Flap shows Flap open and Flap ! AIR INTAKE FLAP ACTUATOR! 3
! closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
063 ! Inlet Flap shows Flap closed switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
064 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
065 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
066 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
067 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
068 ! Inlet Flap shows Flap open high ! AIR INTAKE FLAP ACTUATOR! 1
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
069 ! Inlet Flap shows Flap close high ! AIR INTAKE FLAP ACTUATOR! 2
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
070 ! Inlet Flap shows Flap failed to ! AIR INTAKE FLAP ACTUATOR! 1
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
071 ! Inlet Flap shows Flap loss of open ! AIR INTAKE FLAP ACTUATOR! 1
! indication ! (4015KM) !
----+----------------------------------------+-------------------------+-------
072 ! Inlet Flap shows Flap failed to fully ! AIR INTAKE FLAP ACTUATOR! 2
! close ! (4015KM) !
----+----------------------------------------+-------------------------+-------
073 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
074 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
075 ! Fuel Resolver Excitation ! FUEL CONTR0L UNIT ! 2
! Circuit Failure ! (8022KM) / ECB (59KD) !
----+----------------------------------------+-------------------------+-------
076 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
077 ! Fuel Resolver shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
078 ! Fuel Resolver position shows ! FUEL CONTROL UNIT ! 2
! incorrect position ! (8022KM) !
----+----------------------------------------+-------------------------+-------
079 ! Fuel flow disagrees with command ! FUEL CTRL UNIT (8022KM)/! 1
! ! APU FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
080 ! IGV LVDT Excitation ! IGV ACTUATOR (8014KM) / ! 2
! Circuit Failure ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
081 ! IGV LVDT primary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
082 ! IGV LVDT secondary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
083 ! IGV position disagrees with command ! CHECK IGV ASSEMBLY/ ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
084 ! SCV LVDT Excitation Circuit Failure ! SURGE CONTROL VALVE ! 1
! ! (8058KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
085 ! SCV LVDT primary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
086 ! SCV LVDT secondary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
087 ! SCV position disagrees with command ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
088 ! Load Control Valve shows not open ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
089 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
090 ! Bleed Shutoff due to high temperature ! CHECK IGV ASSEMBLY / ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
091 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
092 ! Load Control Valve shows not closed ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
093 ! Load Control Valve shows open and ! LOAD CONTROL VALVE ! 2
! closed ! (8050KM) !
----+----------------------------------------+-------------------------+-------
094 ! NOT USED ! !
----+----------------------------------------+-------------------------+-------
095 ! A/C pin coding disagrees ! WRG: ACFT PIN PROG/ ! 3
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
096 ! Load Control Valve shows open switch ! LOAD CONTROL VALVE ! 2
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
097 ! Load Control Valve shows closed ! LOAD CONTROL VALVE ! 2
! switch failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
098 ! Low Oil Pressure switch shows ! LOW OIL PRESS SW(8091KM)! 2
! open circuit ! !
----+----------------------------------------+-------------------------+-------
099 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
100 ! Fuel Pressure Shows Low During APU Run ! LOW FUEL PRESSURE ! 2
----+----------------------------------------+-------------------------+-------
101 ! Oil filter switch shows ! OIL FILTER SWITCHES ! 3
! electrical ground ! (8070KM)/(8071KM) !
----+----------------------------------------+-------------------------+-------
102 ! Oil filter shows clogged ! GEN SCAV + LUBE FILTERS ! 1
! ! (8069KM) / (8076KM) !
----+----------------------------------------+-------------------------+-------
103 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
104 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
105 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
106 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
107 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
108 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
109 ! IGV Torque Motor shows open circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
110 ! IGV Torque Motor shows short circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
111 ! SCV Torque Motor shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
112 ! SCV Torque Motor shows short circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
113 ! Starter Motor shows open circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
114 ! Starter Motor shows short circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
115 ! Oil Heater failure ! APU OIL HEATER (8093KM) ! 2
----+----------------------------------------+-------------------------+-------
116 ! ! !
to ! N O T U S E D ! !
119 ! ! !
----+----------------------------------------+-------------------------+-------
120 ! Backup Start Contactor shows ! CONTACTOR (10KA) ! 1
! open circuit ! !
----+----------------------------------------+-------------------------+------
121 ! Backup Start Contactor shows closed ! CONTACTOR (10KA) ! 3
----+----------------------------------------+-------------------------+------
122 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+------
123 ! Main Start Contactor shows open ! ACFT BAT NOT SELECTED / ! 1
! circuit ! CONTACTOR (5KA) !
----+----------------------------------------+-------------------------+-------
124 ! Main Start Contactor shows closed ! CONTACTOR (5KA) ! 3
----+----------------------------------------+-------------------------+-------
125 ! Fuel Solenoid shows circuit failure ! FUEL CONTROL UNIT ! 1
! ! (8022KM)
----+----------------------------------------+-------------------------+-------
126 ! Flow Divider Solenoid shows ! FLOW DIVIDER SOL(8025KM)! 1
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
127 ! Load Valve Solenoid shows circuit ! LOAD CONTROL VALVE ! 1
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
128 ! Ignition Unit shows open circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
129 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
130 ! APU available shows circuit failure ! WRG: APU AVAILABLE ! 2
----+----------------------------------------+-------------------------+-------
131 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
132 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
133 ! Deoil Solenoid shows open circuit ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
134 ! Deoil Solenoid shows circuit failure ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
135 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
136 ! Fault Relay shows circuit failure ! WRG: APU FAULT RELAY ! 2
----+----------------------------------------+-------------------------+-------
137 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
138 ! Load Valve Open Signal shows circuit ! WRG: LOAD VALVE OPEN ! 2
! failure ! SIGNAL !
----+----------------------------------------+-------------------------+-------
139 ! Low Fuel Pressure Relay shows open ! FIRE EMERG STOP RLY(6WF)! 2
! circuit ! !
----+----------------------------------------+-------------------------+-------
140 ! Low Fuel Pressure Relay shows ! FIRE EMERG STOP RLY(6WF)! 2
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
141 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
142 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
143 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
144 ! APU Start in progress shows circuit ! WRG: START IN PROGRESS ! 2
! failure ! !
----+----------------------------------------+-------------------------+-------
145 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
146 ! Ignition unit shows short circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
147 ! ! !
to ! N O T U S E D ! !
149 ! ! !
----+----------------------------------------+-------------------------+-------
150 ! ECS Zone Controller ECS Demand failure ! NO DEMAND DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
151 ! ECS Zone Controller Pack Data failure ! NO PACK DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
152 ! CFDIU BITE Command failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
153 ! CFDIU Flight Phase failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
154 ! CFDIU AC Config failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
155 ! CFDIU Date failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
156 ! CFDIU GMT failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
157 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
158 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
159 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
160 ! ! !
to ! N O T U S E D ! !
169 ! ! !
----+----------------------------------------+-------------------------+-------
170 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
171 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
172 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
173 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
174 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
175 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
176 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
177 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
178 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
179 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
180 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
181 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
182 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
183 ! Power Supply Interrupt ! POWER SUPPLY INTERRUPT ! 2
----+----------------------------------------+-------------------------+-------
184 ! Fuel Solenoid shows ! FUEL CONTROL UNIT ! 1
! Circuit Failure ! (8022KM) !
----+----------------------------------------+-------------------------+-------
185 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
186 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
187 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
188 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
189 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
190 ! ! !
to ! N O T U S E D ! !
200 ! ! !
----+----------------------------------------+-------------------------+-------
201 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! /ECB (59KD) !
----+----------------------------------------+-------------------------+-------
202 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
203 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
204 ! No LRU Fault detected ! FCU (8022KM) / APU FUEL ! 1
! ! SUPPLY / APU ROTATION !
----+----------------------------------------+-------------------------+-------
205 ! No LRU Fault detected ! IGV ACTUATOR (8014KM)/ ! 1
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
206 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! / FLOW DIVIDER (8024KM) !
----+----------------------------------------+-------------------------+-------
207 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
208 ! No LRU Fault detected ! LOP SW(8091KM)/OIL PUMP ! 1
! ! (8080KM)/DEOIL (8083KM) !
----+----------------------------------------+-------------------------+-------
209 ! No LRU Fault detected ! CHECK IGNITION SYSTEM / ! 1
! ! FCU(8022KM)/FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
210 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
211 ! No LRU Fault detected ! OIL COOLER (8079KM) / ! 1
! ! COOLING FAN (8053KM) !
----+----------------------------------------+-------------------------+-------
212 ! No LRU Fault detected ! STARTER MOTOR (8KA) / ! 1
! ! APU ROTATION !
----+----------------------------------------+-------------------------+-------
213 ! No LRU Fault detected ! CHECK APU INLET ! 1
! ! !
----+----------------------------------------+-------------------------+-------
214 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
215 ! No LRU Fault detected ! FCU(8022KM)/FUEL SUPPLY/! 1
! ! STARTER MOTOR (8KA) !
----+----------------------------------------+-------------------------+-------
216 ! No LRU Fault detected ! PRESS XDCRS (8044KM) / ! 1
! ! (8043KM) / SCV (8058KM) !
----+----------------------------------------+-------------------------+-------
217 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
218 ! Power supply interrupt ! POWER SUPPLY INTERRUPT ! 1
----+----------------------------------------+-------------------------+-------
219 ! ! !
to ! N O T U S E D ! !
229 ! ! !
----+----------------------------------------+-------------------------+-------
230 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
231 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
232 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
233 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
234 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
235 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
236 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
237 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
238 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
239 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
240 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
241 ! Data Memory Module shows read failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
242 ! Data Memory Module shows checkword ! DATA MEMORY MODULE ! 3
! failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
243 ! Data Memory Module shows APU ! DATA MEMORY MODULE ! 3
! S/N failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
244 ! Data Memory Module shows write failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
245 ! Oil Level Shows Low ! LOW OIL LEVEL ! 2
----+----------------------------------------+-------------------------+-------
246 ! ! !
to ! N O T U S E D ! !
299 ! ! !
----+----------------------------------------+-------------------------+-------
300 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
301 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
302 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
303 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------

(5) Fault Code Numbers (FCN)
Table 5
-------------------------------------------------------------------------------
FCN ! Fault Description ! CFDS Message ! Class
----+----------------------------------------+-------------------------+-------
001 ! Speed Sensor shows amplitude failure ! SPEED SENSOR (8060KM) ! 1
----+----------------------------------------+-------------------------+-------
002 ! Speed Sensor 1 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
003 ! Speed Sensor 2 Failure and ECB ! SPEED SENSOR (8060KM) ! 1
! internal failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
004 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
005 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
006 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
007 ! Speed Sensor 1 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
008 ! Speed Sensor 2 shows open circuit ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
009 ! Speed Sensor 1 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
010 ! Speed Sensor 2 shows amplitude Failure ! SPEED SENSOR (8060KM) ! 3
----+----------------------------------------+-------------------------+-------
011 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
012 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
013 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
014 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
015 ! N O T U S E D ! ! 1
----+----------------------------------------+-------------------------+-------
016 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
017 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range drift ! (8043KM) !
----+----------------------------------------+-------------------------+-------
018 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range low ! (8043KM) !
----+----------------------------------------+-------------------------+-------
019 ! Delta Pressure Sensor shows out of ! DIFFERENTIAL PRESS XDCR ! 1
! range hight ! (8043KM) !
----+----------------------------------------+-------------------------+-------
020 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
021 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range ! !
----+----------------------------------------+-------------------------+-------
022 ! Inlet Pressure Sensor shows < 6.5 psia ! INLET PRESS XDCR(8048KM)! 2
! on gnd ! !
----+----------------------------------------+-------------------------+-------
023 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range low ! !
----+----------------------------------------+-------------------------+-------
024 ! Inlet Pressure Sensor shows out of ! INLET PRESS XDCR(8048KM)! 2
! range high ! !
----+----------------------------------------+-------------------------+-------
025 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
026 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range ! !
----+----------------------------------------+-------------------------+-------
027 ! Total Pressure and Inlet Pressure ! PRESS XDCR(8044KM)/ ! 1
! disagree ! (8048KM) !
----+----------------------------------------+-------------------------+-------
028 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range low ! !
----+----------------------------------------+-------------------------+-------
029 ! Total Pressure Sensor shows out of ! TOTAL PRESS XDCR(8044KM)! 1
! range high ! !
----+----------------------------------------+-------------------------+-------
030 ! Press XDCR wiring shows open circuit ! CHECK PRESS XDCR WIRING ! 1
! ! (8001KM) !
----+----------------------------------------+-------------------------+-------
031 ! Press XDCR wiring short or ECB ! CHECK PRESS XDCR WIRING ! 1
! internal failure ! (8001KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
032 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
033 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
034 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
035 ! Both EGT Sensors failed ! EGT TCPLE RAKES(8057KM1)! 1
! ! AND (8057KM2)
----+----------------------------------------+-------------------------+-------
036 ! EGT1 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM1)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
037 ! EGT2 Sensor Failure and ECB Internal ! EGT TCPLE RAKE (8057KM2)! 1
! Failure ! AND ECB (59KD) !
----+----------------------------------------+-------------------------+-------
038 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
039 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
040 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
041 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
042 ! EGT1 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM1)! 3
----+----------------------------------------+-------------------------+-------
043 ! EGT1 Sensor disagrees with EGT2 ! EGT TCPLE RAKE (8057KM1)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
044 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
045 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
046 ! EGT2 Sensor shows out of range low ! EGT TCPLE RAKE (8057KM2)! 3
----+----------------------------------------+-------------------------+-------
047 ! EGT2 Sensor disagrees with EGT1 ! EGT TCPLE RAKE (8057KM2)! 3
! Sensor > 66C ! !
----+----------------------------------------+-------------------------+-------
048 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
049 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
050 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
051 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range low ! (8022KM) !
----+----------------------------------------+-------------------------+-------
052 ! Fuel Temp sensor shows out ! FUEL CONTROL UNIT ! 2
! of Range high ! (8022KM) !
----+----------------------------------------+-------------------------+-------
053 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
054 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range low ! (8092KM) !
----+----------------------------------------+-------------------------+-------
055 ! Oil Temp sensor shows out of ! OIL TEMP SENSOR ! 2
! Range high ! (8092KM) !
----+----------------------------------------+-------------------------+-------
056 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
057 ! Inlet Temp Sensor shows out ! INLET TEMP SENSOR ! 3
! of range low ! (8010KM) !
----+----------------------------------------+-------------------------+-------
058 ! Inlet Temp Sensor shows out of ! INLET TEMP SENSOR ! 3
! range high ! (8010KM) !
----+----------------------------------------+-------------------------+-------
059 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
060 ! Inlet Flap shows Flap open and ! AIR INTAKE FLAP ACTUATOR! 3
! Flap closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
061 ! Inlet Flap shows Flap open switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
062 ! Inlet Flap shows Flap open and Flap ! AIR INTAKE FLAP ACTUATOR! 3
! closed ! (4015KM) !
----+----------------------------------------+-------------------------+-------
063 ! Inlet Flap shows Flap closed switch ! AIR INTAKE FLAP ACTUATOR! 3
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
064 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
065 ! Inlet Flap shows Flap close circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
066 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
067 ! Inlet Flap shows Flap open circuit ! AIR INTAKE FLAP ACTUATOR! 2
! short ! (4015KM) !
----+----------------------------------------+-------------------------+-------
068 ! Inlet Flap shows Flap open high ! AIR INTAKE FLAP ACTUATOR! 1
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
069 ! Inlet Flap shows Flap close high ! AIR INTAKE FLAP ACTUATOR! 2
! current ! (4015KM) !
----+----------------------------------------+-------------------------+-------
070 ! Inlet Flap shows Flap failed to ! AIR INTAKE FLAP ACTUATOR! 1
! open ! (4015KM) !
----+----------------------------------------+-------------------------+-------
071 ! Inlet Flap shows Flap loss of open ! AIR INTAKE FLAP ACTUATOR! 1
! indication ! (4015KM) !
----+----------------------------------------+-------------------------+-------
072 ! Inlet Flap shows Flap failed to fully ! AIR INTAKE FLAP ACTUATOR! 2
! close ! (4015KM) !
----+----------------------------------------+-------------------------+-------
073 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
074 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
075 ! Fuel Resolver Excitation ! FUEL CONTR0L UNIT ! 2
! Circuit Failure ! (8022KM) / ECB (59KD) !
----+----------------------------------------+-------------------------+-------
076 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
077 ! Fuel Resolver shows open ! FUEL CONTROL UNIT ! 2
! circuit ! (8022KM) !
----+----------------------------------------+-------------------------+-------
078 ! Fuel Resolver position shows ! FUEL CONTROL UNIT ! 2
! incorrect position ! (8022KM) !
----+----------------------------------------+-------------------------+-------
079 ! Fuel flow disagrees with command ! FUEL CTRL UNIT (8022KM)/! 1
! ! APU FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
080 ! IGV LVDT Excitation ! IGV ACTUATOR (8014KM) / ! 2
! Circuit Failure ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
081 ! IGV LVDT primary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
082 ! IGV LVDT secondary shows open circuit ! IGV ACTUATOR (8014KM) ! 2
----+----------------------------------------+-------------------------+-------
083 ! IGV position disagrees with command ! CHECK IGV ASSEMBLY/ ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
084 ! SCV LVDT Excitation Circuit Failure ! SURGE CONTROL VALVE ! 1
! ! (8058KM)/ ECB (59KD) !
----+----------------------------------------+-------------------------+-------
085 ! SCV LVDT primary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
086 ! SCV LVDT secondary shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
087 ! SCV position disagrees with command ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
088 ! Load Control Valve shows not open ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
089 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
090 ! Bleed Shutoff due to high temperature ! CHECK IGV ASSEMBLY / ! 1
! ! IGV ACTUATOR (8014KM) !
----+----------------------------------------+-------------------------+-------
091 ! Bleed Shutoff due to reverse flow ! SCV (8058KM) / PRESS ! 1
! condition ! XDCRS (8043KM)/(8044KM) !
----+----------------------------------------+-------------------------+-------
092 ! Load Control Valve shows not closed ! LOAD CONTROL VALVE ! 2
! ! (8050KM) !
----+----------------------------------------+-------------------------+-------
093 ! Load Control Valve shows open and ! LOAD CONTROL VALVE ! 2
! closed ! (8050KM) !
----+----------------------------------------+-------------------------+-------
094 ! NOT USED ! !
----+----------------------------------------+-------------------------+-------
095 ! A/C pin coding disagrees ! WRG: ACFT PIN PROG/ ! 3
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
096 ! Load Control Valve shows open switch ! LOAD CONTROL VALVE ! 2
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
097 ! Load Control Valve shows closed ! LOAD CONTROL VALVE ! 2
! switch failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
098 ! Low Oil Pressure switch shows ! LOW OIL PRESS SW(8091KM)! 2
! open circuit ! !
----+----------------------------------------+-------------------------+-------
099 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
100 ! Fuel Pressure Shows Low During APU Run ! LOW FUEL PRESSURE ! 2
----+----------------------------------------+-------------------------+-------
101 ! Oil filter switch shows ! OIL FILTER SWITCHES ! 3
! electrical ground ! (8070KM)/(8071KM) !
----+----------------------------------------+-------------------------+-------
102 ! Oil filter shows clogged ! GEN SCAV + LUBE FILTERS ! 1
! ! (8069KM) / (8076KM) !
----+----------------------------------------+-------------------------+-------
103 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
104 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
105 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
106 ! Fuel Torque Motor shows open circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
107 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
108 ! Fuel Torque Motor shows short circuit ! FUEL CONTROL UNIT ! 1
! ! (8022KM) !
----+----------------------------------------+-------------------------+-------
109 ! IGV Torque Motor shows open circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
110 ! IGV Torque Motor shows short circuit ! IGV ACTUATOR (8014KM) ! 1
----+----------------------------------------+-------------------------+-------
111 ! SCV Torque Motor shows open circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
112 ! SCV Torque Motor shows short circuit ! SURGE CONTROL VALVE ! 1
! ! (8058KM) !
----+----------------------------------------+-------------------------+-------
113 ! Starter Motor shows open circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
114 ! Starter Motor shows short circuit ! STARTER MOTOR (8KA) ! 1
----+----------------------------------------+-------------------------+-------
115 ! Oil Heater failure ! APU OIL HEATER (8093KM) ! 2
----+----------------------------------------+-------------------------+-------
116 ! ! !
to ! N O T U S E D ! !
119 ! ! !
----+----------------------------------------+-------------------------+-------
120 ! Backup Start Contactor shows ! CONTACTOR (10KA) ! 1
! open circuit ! !
----+----------------------------------------+-------------------------+------
121 ! Backup Start Contactor shows closed ! CONTACTOR (10KA) ! 3
----+----------------------------------------+-------------------------+------
122 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+------
123 ! Main Start Contactor shows open ! ACFT BAT NOT SELECTED / ! 1
! circuit ! CONTACTOR (5KA) !
----+----------------------------------------+-------------------------+-------
124 ! Main Start Contactor shows closed ! CONTACTOR (5KA) ! 3
----+----------------------------------------+-------------------------+-------
125 ! Fuel Solenoid shows circuit failure ! FUEL CONTROL UNIT ! 1
! ! (8022KM)
----+----------------------------------------+-------------------------+-------
126 ! Flow Divider Solenoid shows ! FLOW DIVIDER SOL(8025KM)! 1
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
127 ! Load Valve Solenoid shows circuit ! LOAD CONTROL VALVE ! 1
! failure ! (8050KM) !
----+----------------------------------------+-------------------------+-------
128 ! Ignition Unit shows open circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
129 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
130 ! APU available shows circuit failure ! WRG: APU AVAILABLE ! 2
----+----------------------------------------+-------------------------+-------
131 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
132 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
133 ! Deoil Solenoid shows open circuit ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
134 ! Deoil Solenoid shows circuit failure ! DEOIL SOLENOID (8083KM) ! 1
----+----------------------------------------+-------------------------+-------
135 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
136 ! Fault Relay shows circuit failure ! WRG: APU FAULT RELAY ! 2
----+----------------------------------------+-------------------------+-------
137 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
138 ! Load Valve Open Signal shows circuit ! WRG: LOAD VALVE OPEN ! 2
! failure ! SIGNAL !
----+----------------------------------------+-------------------------+-------
139 ! Low Fuel Pressure Relay shows open ! FIRE EMERG STOP RLY(6WF)! 2
! circuit ! !
----+----------------------------------------+-------------------------+-------
140 ! Low Fuel Pressure Relay shows ! FIRE EMERG STOP RLY(6WF)! 2
! circuit failure ! !
----+----------------------------------------+-------------------------+-------
141 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
142 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
143 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
144 ! APU Start in progress shows circuit ! WRG: START IN PROGRESS ! 2
! failure ! !
----+----------------------------------------+-------------------------+-------
145 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
146 ! Ignition unit shows short circuit ! IGNITION EXCITER ! 1
! ! (8030KM) !
----+----------------------------------------+-------------------------+-------
147 ! ! !
to ! N O T U S E D ! !
149 ! ! !
----+----------------------------------------+-------------------------+-------
150 ! ECS Zone Controller ECS Demand failure ! NO DEMAND DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
151 ! ECS Zone Controller Pack Data failure ! NO PACK DATA FROM ECS ! 3
----+----------------------------------------+-------------------------+-------
152 ! CFDIU BITE Command failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
153 ! CFDIU Flight Phase failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
154 ! CFDIU AC Config failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
155 ! CFDIU Date failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
156 ! CFDIU GMT failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
157 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
158 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
159 ! CFDIU AC ID failure ! NO DATA FROM CFDIU ! 3
----+----------------------------------------+-------------------------+-------
160 ! ECS Zone Controller iCARE ENG 1 ! NO ICARE DATA FROM ! 3
! Data Failure ! ECS ENG 1 !
----+----------------------------------------+-------------------------+-------
161 ! ECS Zone Controller iCARE ENG 2 ! NO ICARE DATA FROM ! 3
! Data Failure ! ECS ENG 2 !
----+----------------------------------------+-------------------------+-------
162 ! ! !
to ! N O T U S E D ! !
169 ! ! !
----+----------------------------------------+-------------------------+-------
170 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
171 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
172 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
173 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
174 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
175 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
176 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
177 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
178 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
179 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
180 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
181 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
182 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
183 ! Power Supply Interrupt ! POWER SUPPLY INTERRUPT ! 2
----+----------------------------------------+-------------------------+-------
184 ! Fuel Solenoid shows ! FUEL CONTROL UNIT ! 1
! Circuit Failure ! (8022KM) !
----+----------------------------------------+-------------------------+-------
185 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
186 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
187 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
188 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
189 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
190 ! ! !
to ! N O T U S E D ! !
200 ! ! !
----+----------------------------------------+-------------------------+-------
201 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! /ECB (59KD) !
----+----------------------------------------+-------------------------+-------
202 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
203 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
204 ! No LRU Fault detected ! FCU (8022KM) / APU FUEL ! 1
! ! SUPPLY / APU ROTATION !
----+----------------------------------------+-------------------------+-------
205 ! No LRU Fault detected ! IGV ACTUATOR (8014KM)/ ! 1
! ! ECB (59KD) !
----+----------------------------------------+-------------------------+-------
206 ! No LRU Fault detected ! FUEL CTRL UNIT (8022KM) ! 1
! ! / FLOW DIVIDER (8024KM) !
----+----------------------------------------+-------------------------+-------
207 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
208 ! No LRU Fault detected ! LOP SW(8091KM)/OIL PUMP ! 1
! ! (8080KM)/DEOIL (8083KM) !
----+----------------------------------------+-------------------------+-------
209 ! No LRU Fault detected ! CHECK IGNITION SYSTEM / ! 1
! ! FCU(8022KM)/FUEL SUPPLY !
----+----------------------------------------+-------------------------+-------
210 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
211 ! No LRU Fault detected ! OIL COOLER (8079KM) / ! 1
! ! COOLING FAN (8053KM) !
----+----------------------------------------+-------------------------+-------
212 ! No LRU Fault detected ! STARTER MOTOR (8KA) / ! 1
! ! APU ROTATION !
----+----------------------------------------+-------------------------+-------
213 ! No LRU Fault detected ! CHECK APU INLET ! 1
! ! !
----+----------------------------------------+-------------------------+-------
214 ! No LRU Fault detected ! -- ! -
----+----------------------------------------+-------------------------+-------
215 ! No LRU Fault detected ! FCU(8022KM)/FUEL SUPPLY/! 1
! ! STARTER MOTOR (8KA) !
----+----------------------------------------+-------------------------+-------
216 ! No LRU Fault detected ! PRESS XDCRS (8044KM) / ! 1
! ! (8043KM) / SCV (8058KM) !
----+----------------------------------------+-------------------------+-------
217 ! No LRU Fault detected ! -- ! 1
----+----------------------------------------+-------------------------+-------
218 ! Power supply interrupt ! POWER SUPPLY INTERRUPT ! 1
----+----------------------------------------+-------------------------+-------
219 ! ! !
to ! N O T U S E D ! !
229 ! ! !
----+----------------------------------------+-------------------------+-------
230 ! ECB internal Failure ! ECB (59KD) ! 1
----+----------------------------------------+-------------------------+-------
231 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
232 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
233 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
234 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
235 ! ECB internal Failure ! ECB (59KD) ! 3
----+----------------------------------------+-------------------------+-------
236 ! ECB internal Failure ! ECB (59KD) ! 2
----+----------------------------------------+-------------------------+-------
237 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
238 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
239 ! I N T E R N A L E C B ! -- ! -
----+----------------------------------------+-------------------------+-------
240 ! N O T U S E D ! !
----+----------------------------------------+-------------------------+-------
241 ! Data Memory Module shows read failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
242 ! Data Memory Module shows checkword ! DATA MEMORY MODULE ! 3
! failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
243 ! Data Memory Module shows APU ! DATA MEMORY MODULE ! 3
! S/N failure ! (8062KM) !
----+----------------------------------------+-------------------------+-------
244 ! Data Memory Module shows write failure ! DATA MEMORY MODULE ! 3
! ! (8062KM) !
----+----------------------------------------+-------------------------+-------
245 ! Oil Level Shows Low ! LOW OIL LEVEL ! 2
----+----------------------------------------+-------------------------+-------
246 ! ! !
to ! N O T U S E D ! !
299 ! ! !
----+----------------------------------------+-------------------------+-------
300 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
301 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
302 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------
303 ! ECB internal Failure ! -- ! 1
----+----------------------------------------+-------------------------+-------

E. AIDS
The Aircraft Integrated Data System (AIDS) contains two programmed reports linked to the APU. The two programmed reports are:
  • Main Engine Start (MES) IDLE,
  • SHUTDOWN.
(1) MES/IDLE Report
The Main Engine Start (MES)/IDLE report is supplied after every fiftieth MES and it is used to monitor APU performance. The report includes:
  • the data from both Main Engine Starts (MES),
  • the idle mode that follows (until the APU is shutdown),
  • the data from the last APU start, which includes the APU operation hours and the start cycles.
(2) SHUT DOWN Report
The SHUT DOWN report is supplied after every APU shutdown occurs and is used for trouble shooting. The printer 4TW of the MCDUs prints out both the reports and ground software analyzes the reports. This information includes the APU operation hours and the start cycles.
[Rev.10 from 2021] 2026.04.01 01:32:13 UTC
"Aviabrain" 2025