W DOC AIRBUS | AMM A320F

Interrogation of the FQIS Input Parameters Pages

TASK 28-42-00-740-003-A
Interrogation of the FQIS Input Parameters Pages

ZONE: 192
ZONE: 211
1. Reason for the Job
To show the details of each FQIC input parameter page.
NOTE: The Trouble Shooting Manual (TSM) should be used with this task to find the cause of malfunctions.
NOTE: This task also gives step(s) for the aircrafts with the ACT(s) installed. You can ignore the step(s) if it is not applicable for you.
2. Job Set-up Information
 A. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
192
AIR CONDITIONING COMPT AND FAIRINGS
211
COCKPIT
 B. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 31-32-00-860-001-A
Procedure to Get Access to the SYSTEM REPORT/TEST Menu Page
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 34-10-00-860-002-A
ADIRS Start Procedure
TASK 34-10-00-860-005-A
ADIRS Stop Procedure
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 3 (ACT Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
F Input Parameters - Page 3 (ACT Probe Capacitances) ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 28-42-00-010-050-A
A. Get Access
   (1) Open the access door 192MB.
NOTE: If operating on battery power, do not keep the door open longer than necessary because the battery can discharge.
Subtask 28-42-00-860-054-A
B. Aircraft Maintenance Configuration
   (1) Do the EIS start procedure (Ref. AMM TASK 31-60-00-860-001).
   (2) Get access to the SYSTEM REPORT/TEST Menu Page (Ref. AMM TASK 31-32-00-860-001).
   (3) If it is necessary to have pitch and roll data from the ADIRS, do the ADIRS start procedure (Ref. AMM TASK 34-10-00-860-002).
   (4) If it is necessary to have pitch and roll data from the FQIS, make sure that:
  • the ADIRS is switched off
  • the fuel tanks are not full and not empty.
NOTE: The FQIS calculates the pitch and roll angles from the height at which the fuel surface touches the fuel quantity probes. If the fuel tank is full or empty, the FQIS cannot calculate the pitch and roll angles.
Subtask 28-42-00-865-051-A
C. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C ALL
49VUFUEL/FQI/CHAN/11QTA13
** ON A/C NOT FOR ALL
121VUFUEL/FQI/CHANNEL/1 AND 28QTL26
** ON A/C ALL
121VUFUEL/FQI/CHAN/22QTM27
** ON A/C NOT FOR ALL
121VUFUEL/FQI/CHANNEL/1 AND 28QTL25
4. Procedure
Subtask 28-42-00-740-057-A ** ON A/C NOT FOR ALL
A. Get Access to the FQIC Input Parameters Pages:
NOTE: The FQIS input parameter pages are not automatically updated. The operation of the Fuel System can be monitored through the CFDS (FUEL) input parameter pages. The pages must be continuously updated. Use the NEXT PAGE control on the MCDU to cycle the pages to update the screen.
NOTE: This procedure also gives step(s) for the aircrafts with the ACT(s) installed. You can ignore the step(s) if it is not applicable for you.
   (1) When the SYSTEM REPORT/TEST Menu page comes into view, do this procedure:
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 3 (ACT Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
ACTION
RESULT
1.Push the line key adjacent to the FUEL indication.
  • the FUEL Main Menu first page comes into view.
2.On the MCDU control panel push the NEXT PAGE key.
  • the FUEL Main Menu second page comes into view.
3.Push the line key adjacent to the INPUT PARAMETER VALUES indication.
  • the MCDU shows the page FQIS INPUT PARAMETERS.
4.On the MCDU control panel push the NEXT PAGE key.
  • the MCDU shows the page FQIS PROBE CAPACITANCES.
5.On the MCDU control panel push the NEXT PAGE key.
  • the MCDU shows the page ACT PROBE CAPACITANCES.
6.On the MCDU control panel push the NEXT PAGE key.
  • the MCDU shows the page FQIS DISCRETE INPUTS.
Subtask 28-42-00-740-057-B ** ON A/C NOT FOR ALL
A. Get Access to the FQIC Input Parameters Pages:
NOTE: The FQIS input parameter pages are automatically updated every 5.5 seconds.
NOTE: This procedure also gives step(s) for the aircrafts with the ACT(s) installed. You can ignore the step(s) if it is not applicable for you.
   (1) When the SYSTEM REPORT/TEST Menu page comes into view, do this procedure:
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 3 (ACT Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
ACTION
RESULT
1.Push the line key adjacent to the FUEL indication.
  • the FUEL Main Menu first page comes into view.
2.On the MCDU control panel push the NEXT PAGE key.
  • the FUEL Main Menu second page comes into view.
3.Push the line key adjacent to the INPUT PARAMETER VALUES indication.
  • the MCDU shows the page FQIS INPUT PARAMETERS.
4.On the MCDU control panel push the NEXT PAGE key.
  • the MCDU shows the page FQIS PROBE CAPACITANCES.
5.On the MCDU control panel push the NEXT PAGE key.
  • the MCDU shows the page ACT PROBE CAPACITANCES.
6.On the MCDU control panel push the NEXT PAGE key.
  • the MCDU shows the page FQIS DISCRETE INPUTS.
Subtask 28-42-00-740-057-E ** ON A/C NOT FOR ALL
A. Get Access to the FQIC Input Parameters Pages:
NOTE: The FQIS input-parameter pages are not automatically updated. The operation of the fuel system is monitored through the CFDS (FUEL) input-parameter pages. The pages are continuously updated. It is recommended to use the NEXT PAGE control on the MCDU to cycle the pages and update the screen.
NOTE: This procedure also gives step(s) for the aircrafts with the ACT(s) installed. You can ignore the step(s) if it is not applicable for you.
   (1) When the SYSTEM REPORT/TEST menu page comes into view, do this procedure:
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 3 (ACT Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
ACTION
RESULT
1.Push the line key adjacent to the FUEL indication.
  • The FUEL main-menu first page comes into view.
2.On the MCDU control panel, push the NEXT PAGE key.
  • The FUEL main-menu second page comes into view.
3.Push the line key adjacent to the INPUT PARAMETER VALUES indication.
  • The MCDU shows the page FQIS INPUT PARAMETERS.
4.On the MCDU control panel, push the NEXT PAGE key.
  • The MCDU shows the page FQIS PROBE CAPACITANCES.
5.On the MCDU control panel, push the NEXT PAGE key.
  • The MCDU shows the page ACT PROBE CAPACITANCES.
6.On the MCDU control panel, push the NEXT PAGE key.
  • The MCDU shows the page FQIS DISCRETE INPUTS.
Subtask 28-42-00-740-071-A ** ON A/C NOT FOR ALL
B. Table A
   (1) Input Parameter values that are defective or not available may be replaced by crosses (xx) or an asterisk. The TSM should be used to find the cause of the malfunction.
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
------------- Parameter
Displayed Value -------------------- Actual Value
Displayed Value ------------------ Value with "*"
Displayed Value ---------------------- "XX..X"
Cadensicon
permittivity
(Kd)
Cadensicon covered
and Kd range check
not failed.
Cadensicon not
covered or Kd
range check
failed.
Kd not available
(due to failure of
an FQIC circuit or
the K-cell
capacitance).
Cadensicon
density (D)
Cadensicon covered
and density range
check not failed.
Cadensicon not
covered or
density range
check failed.
Cadensicon density
not available
(due to failure of
an FQIC circuit).
CIC
permittivity
(Kt)
CIC covered and
Kt range check
not failed.
CIC not covered
or Kt range check
failed.
Kt not available
(due to failure of an
FQIC circuit or the
CIC capacitance).
Temperature
Diode Mode data
available and
Temperature check
not failed.
Diode Mode data
available and
Temperature check
failed.
Diode Mode data not
available (due to
failure of an FQIC
circuit or a probe
diode).
Effective
Attitude
Value from ADIRS
"A" if available
and not failed
or
Value from probes
"F" if (ADIRS is
not available or
failed) and (probe
data is available
and good).
Probe value "F"
with asterisk if
(ADIRS is not
available or
failed) and
(probe data is
available but
out of range).
(ADIRS is not
available or failed)
and probe data is not
available.
Probe
Capacitance
Probe available and
capacitance range
check not failed.
Probe available
and capacitance
range check
failed.
Probe not available.
(Due to failure of an
FQIC circuit).
Subtask 28-42-00-740-071-C ** ON A/C NOT FOR ALL
B. Table A
   (1) Input Parameter values that are defective or not available may be replaced by a default value. The TSM should be used to find the cause of the malfunction.

NOTE: For A321 the temperature is displayed as an average between the 2 sensors on each wing.
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 1 ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
F Input Parameters - Page 2 (FQIS Probe Capacitances) ** ON A/C NOT FOR ALL
------------- Parameter
Displayed Value -------------------- Actual Value
Displayed Value ------------------ Value with
Displayed Value ---------------------- "XX..X"
Dielectric

Display value
computed for each
tank. If uncovered
the valve will be
close to 1.
Display default value
if outside range
Value not available

ULTRACOMP
(V)
Display velocity
of sound for
center & right tank
as determined by the
Ultracomp
Display default value
if outside range
Value not available

Temperature
Display signed fuel
temperature. For A319 & A320 display
outer & inner temperatures. For A321
display both channels for
each wing as an
average between the 2 sensors
Display default value if
outside range
Value not available

Effective
Attitude
Value from ADIRS
+ channel number
of available data.
CH 1 preferred
Value not available
Blank display if ADIRS
CH 1 and CH2 are not
available.
Probe
Capacitance
Probe available and
capacitance range
check not failed.
Probe available
and capacitance
range check
failed.
Probe not available.
(Due to failure of an
FQIC circuit).
Subtask 28-42-00-740-058-A ** ON A/C NOT FOR ALL
C. Discrete Input Parameters
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
   (1) Refer to the TSM only after the Input Parameter state has been found. The grid reference gives the Discrete Input state.
For example:
     (a) The letter A = the first column and the number 1 = the first row. The grid reference for the first input state is A1. See table 1 for row 1 states.
     (b) The letter R = the last column and the number 8 = the last row. The grid reference for the last input state is R8. See table 8 for row 8 states.
Input Parameter values that are defective or not available may be replaced by crosses (xx) or a default value.
GRID REF
DISCRETE
STATE 1
STATE 0
A1
PPA1Si1
ACT1 fitted
ACT1 not fitted
B1
PPA2Si1
ACT2 fitted
ACT2 not fitted
C1
PP1
Set
Not set
D1
PP2
Set
Not set
E1
PPA1Si2
ACT1 fitted
ACT1 not fitted
F1
PPA2Si2
ACT2 fitted
ACT2 not fitted
G1
PPLK
LB
KG
H1
PP3
Set
Not set
J1
PP4
Set
Not set
K1
PP
Set
Not set
L1
FLSCU1 BITE 2
Active
Not active
M1
FLSCU1 BITE 3
Active
Not active
N1
FLSCU1 BITE 4
Active
Not active
P1
FLSCU2 BITE 2
Active
Not active
Q1
FLSCU2 BITE 3
Active
Not active
R1
FLSCU2 BITE 4
Active
Not active
Table 1 - First Row

GRID REF
DISCRETE
STATE 1
STATE 0
A2
Cockpit Priority
On
Off
B2
Defuel Selected
Defuel
Not defuel
C2
Hi Level Test
On
Off
D2
Refuel Bus Power
Yes
No
E2
Refuel Selected
Selected
Not selected
F2
X-Feed Valve Monitor
Fail
Ok
G2
Not used


H2
Refuel Panel Door Open
Open
Not open
J2
Battery Bus/Main Bus (Battery Refuel)
Battery
Main
K2
Cockpit Panel Fault
Fail
Ok
L2
Refuel Panel Fault
Fail
Ok
M2
Refuel Cockpit Panel Fault
Fail
Ok
N2
Cockpit Increment (Psi)
Inc
Not inc
P2
Cockpit Decrement (Psi)
Dec
Not dec
Q2
Refuel Panel Increment (Psi)
Inc
Not inc
R2
Refuel Panel Decrement (Psi)
Ded
Not dec
Table 2 - Second Row

GRID REF
DISCRETE
STATE 1
STATE 0
A3
FL1LS1
Wet
Dry
B3
FL1LS2
Wet
Dry
C3
FL1LS3
Dry
Wet
D3
FL1LS4
Dry
Wet
E3
FL1LS5
Wet
Dry
F3
FL1LS6
Dry
Wet
G3
FL1LS7
Dry
Wet
H3
FL1LS8
Wet
Dry
J3
FL1LS10
Dry
Wet
K3
FL1LS11
Dry
Wet
L3
FL1LS12
Dry
Wet
M3
FL1LS13
Dry
Wet
N3
FL1LS14
Dry
Wet
P3
FL1LS15
Dry
Wet
Q3
FLSCU 1 BITE 1
Active
Not active
R3
FLSCU 2 BITE 1
Active
Not active
Table 3 - Third Row

GRID REF
DISCRETE
STATE 1
STATE 0
A4
FL2LS1
Wet
Dry
B4
FL2LS2
Wet
Dry
C4
FL2LS3
Dry
Wet
D4
FL2LS4
Dry
Wet
E4
FL2LS5
Wet
Dry
F4
FL2LS6
Dry
Wet
G4
FL2LS7
Dry
Wet
H4
FL2LS8
Wet
Dry
J4
FL2LS10
Dry
Wet
K4
FL2LS11
Dry
Wet
L4
FL2LS12
Dry
Wet
M4
FL2LS13
Dry
Wet
N4
FL2LS14
Dry
Wet
P4
FL2LS15
Dry
Wet
Q4
Not used


R4
Not used


Table 4 - Fourth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A5
FL1Lo1
Open
Shut
B5
FL1Lo2
Off
On
C5
FL1SFM
Fail
Ok
D5
FL1T1
>T
<T
E5
FL1T2
>T
<T
F5
FL2Lo1
Open
Shut
G5
FL2Lo2
Off
On
H5
FL2SFM
Fail
Ok
J5
FL2T1
>T
<T
K5
FL2T2
>T
<T
L5
FL3LS1
Wet
Dry
M5
FL3LS2
Wet
Dry
N5
FL3LS3
Dry
Wet
P5
FL3LS5
Wet
Dry
Q5
FL3LS7
Dry
Wet
R5
FL3LS8
Wet
Dry
Table 5 - Fifth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A6
FQI CH1
Left refuel valve command on
left refuel valve command off
B6
FQI CH1
Center refuel valve command on
Center refuel valve command off
C6
FQI CH1
Right refuel valve command on
Right refuel valve command off
D6
FQI CH2
ACT1 refuel valve command on
ACT1 refuel valve command off
E6
FQI CH2
ACT2 refuel valve command on
ACT2 refuel valve command off
F6
Not used


G6
LFTV OPFB
Left forward ICTV open
Left forward ICTV not open
H6
LFTV SHFB
Left forward ICTV shut
Left forward ICTV not shut
J6
RFTV OPFB
Right forward ICTV open
Right forward ICTV not open
K6
RFTV SHFB
Right forward ICTV shut
Right forward ICTV not shut
L6
LAFTV OPFB
Left aft ICTV open
Left aft ICTV not open
M6
LATV SHFB
Left aft ICTV shut
Left aft ICTV shut
N6
RATV OPFB
Right aft ICTV open
Right aft ICTV not open
P6
RATV SHFB
Right aft ICTV shut
Right aft ICTV not shut
Q6
FICTVR
FWD delatch active
FWD delatch inactive
R6
AICTVR
FWD delatch active
FWD delatch inactive
Table 6 - Sixth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A7
LNORM
Normal
Not normal
B7
ctrNORM
Normal
Not normal
C7
RNORM
Normal
Not normal
D7
A1NORM
Normal
Not normal
E7
A2NORM
Normal
Not normal
F7
GND/FLT
Ground
Flight
G7
CH1 fault
Fault
No Fault
H7
CH2 fault
Fault
No fault
J7
Not used


K7
Not used


L7
Not used


M7
Not used


N7
Not used


P7
Not used


Q7
Not used


R7
Not used


Table 7 - Seventh Row

GRID REF
DISCRETE
STATE 1
STATE 0
A8
Not used


B8
Not used


C8
Not used


D8
Not used


E8
Not used


F8
Not used


G8
Not used


H8
Not used


J8
Not used


K8
Not used


L8
Not used


M8
Not used


N8
Not used


P8
Not used


Q8
Not used


R8
Not used


Table 8 - Not used

Subtask 28-42-00-740-058-B ** ON A/C NOT FOR ALL
C. Discrete Input Parameters
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
   (1) Refer to the TSM only after the Input Parameter state has been found. The grid reference gives the Discrete Input state.
For example:
     (a) the letter A = the first column and the number 1 = the first row. The grid reference for the first input state is A1. See table 1 for row 1 states.
     (b) the letter R = the last column and the number 8 = the last row. The grid reference for the last input state is R8. See table 8 for row 8 states.
Input Parameter values that are defective or not available may be replaced by crosses (xx) or an asterisk.
GRID REF
DISCRETE
STATE 1
STATE 0
A1
ACT1 fitted
Set
Not set
B1
Spare 2
Set
Not set
C1
LH & RH Ribs dry (spare)
Set
Not set
D1
LH Ribs dry (spare)
Set
Not set
E1
ACT 1 Fitted
Fitted
Not fitted
F1
ACT 2 Fitted (spare)
Fitted
Not fitted
G1
Lbs/Kg
LBS
KG
H1
A321/A320 A
A321
A320
J1
A321/A320 B (spare)
A321
A320
K1
Program pin parity
Set
Not set
L1
Not used


M1
Not used


N1
Not used


P1
Not used


Q1
Not used


R1
Not used


Table 1 - Program Pins

GRID REF
DISCRETE
STATE 1
STATE 0
A2
Cockpit refuel priority
On
Off
B2
Defuel selected
Defuel
No defuel
C2
High level test
On
Off
D2
Refuel bus powered
Yes
No
E2
Refuel selected
Selected
Not select
F2
Crossfeed valve monitor
Fail
OK
G2
Surge wet W/L - battery refuel
Wet
Dry
H2
Refuel panel door open
Open
Not open
J2
Battery/Main refuel
Battery
Main
K2
Cockpit preselector fault
Fail
OK
L2
Refuel panel preselector fault
Fail
OK
M2
Refuel indicator fault
Fail
OK
N2
Cockpit increment
Increment
Not incr.
P2
Cockpit decrement
Decrement
Not decr.
Q2
Refuel panel increment
Increment
Not incr.
R2
Refuel panel decrement
Decrement
Not decr.
Table 2 - Discrete Inputs
Preselector Increment and Decrement

GRID REF
DISCRETE
STATE 1
STATE 0
A3
FLSCU-1 Left wing low level LS1 (16QJ1)
Wet
Dry
B3
FLSCU-1 Right wing low level LS2 (39QJ2)
Wet
Dry
C3
FLSCU-1 Left wing high level LS3 (17QJ1)
Dry
Wet
D3
FLSCU-1 Left surge high level LS4 (28QJ1)
Dry
Wet
E3
FLSCU-1 Right wing low level LS5 (15QJ2)
Wet
Dry
F3
FLSCU-1 Center low level LS6 (21QJ)
Dry
Wet
G3
FLSCU-1 Center high level LS7 (20QJ)
Dry
Wet
H3
FLSCU-1 Left wing low level LS8 (40QJ1)
Wet
Dry
J3
FLSCU-1 Left wing low level LS10 (38QJ1)
Dry
Wet
K3
FLSCU-1 Left wing full A LS11 (23QJ1)
Dry
Wet
L3
FLSCU-1 Left wing full B LS12 (27QJ1)
Dry
Wet
M3
FLSCU-1 L wing underfull A sensor LS13 (24QJ1)
Dry
Wet
N3
FLSCU-1 L wing underfull B sensor LS14 (25QJ1)
Dry
Wet
P3
FLSCU-1 L wing underfull C sensor LS15 (26QJ1)
Dry
Wet
Q3
Not used


R3
Not used


Table 3 - Fuel Level (FLSCU1)

GRID REF
DISCRETE
STATE 1
STATE 0
A4
FLSCU-2 Right wing low level LS1 (16QJ2)
Wet
Dry
B4
FLSCU-2 Left wing low level LS2 (39QJ1)
Wet
Dry
C4
FLSCU-2 Right wing high level LS3 (17QJ2)
Dry
Wet
D4
FLSCU-2 Right surge high level LS4 (28QJ2)
Dry
Wet
E4
FLSCU-2 Left wing low level LS5 (15QJ1)
Wet
Dry
F4
FLSCU-2 Center low level LS6 (22QJ)
Dry
Wet
G4
FLSCU-2 Center high level dummy LS7 (6QJ)
Dry
Wet
H4
FLSCU-2 Right wing low level LS8 (40QJ2)
Wet
Dry
J4
FLSCU-2 Right wing low level LS10 (38QJ2)
Dry
Wet
K4
FLSCU-2 Right wing full A LS11 (23QJ2)
Dry
Wet
L4
FLSCU-2 Right wing full B LS12 (27QJ2)
Dry
Wet
M4
FLSCU-2 R wing underfull A sensor LS13 (24QJ2)
Dry
Wet
N4
FLSCU-2 R wing underfull B sensor LS14 (25QJ2)
Dry
Wet
P4
FLSCU-2 R wing underfull C sensor LS15 (26QJ2)
Dry
Wet
Q4
Not used


R4
Not used


Table 4 - Fuel Level (FLSCU2)

NOTE: FLSCU-2 Center high level dummy LS7 (6QJ) is located in the avionics bay.
GRID REF
DISCRETE
STATE 1
STATE 0
A5
FLSCU-1 LOG 1 Left IDG cooling
Open
Shut
B5
FLSCU-1 LOG 2 center tank pump cont.
Off
On
C5
FLSCU-1 Sensor failure monitor
Fail
OK
D5
FLSCU-1 T1 Left temperature sensor (29QJ1)
>T
<T
E5
FLSCU-1 T2 Left temperature sensor dummy (41QJ)
>T
<T
F5
FLSCU-2 LOG 1 Right IDG cooling
Open
Shut
G5
FLSCU-2 LOG 2 Center tank pump cont.
Off
On
H5
FLSCU-2 Sensor failure monitor
Fail
OK
J5
FLSCU-2 T1 Right temperature sensor (29QJ2)
>T
<T
K5
FLSCU-2 T2 Right TEMP sensor dummy (42QJ)
>T
<T
L5
Not used


M5
Not used


N5
Not used


P5
Not used


Q5
Not used


R5
Not used


Table 5 - Monitor Signals

GRID REF
DISCRETE
STATE 1
STATE 0
A6
Not used


B6
Not used


C6
Not used


D6
Not used


E6
Not used


F6
Not used


G6
Not used


H6
Not used


J6
Not used


K6
Not used


L6
Not used


M6
Not used


N6
Not used


P6
Not used


Q6
Not used


R6
Not used


Table 6 - Not Used

GRID REF
DISCRETE
STATE 1
STATE 0
A7
Left normal selected
Normal
Not normal
B7
Center normal selected
Normal
Not normal
C7
Right normal selected
Normal
Not normal
D7
ACT 1 normal selected
Normal
Not normal
E7
ACT 2 normal selected
Normal
Not normal
F7
Ground/Flight
Ground
Flight
G7
Spattial config - mod I/P
On
Off
H7
Not used


J7
Not used


K7
Not used


L7
Not used


M7
Not used


N7
Not used


P7
Not used


Q7
Not used


R7
Not used


Table 7 - Normal Selected

GRID REF
DISCRETE
STATE 1
STATE 0
A8
Not shown


B8
Not shown


C8
Not shown


D8
Not shown


E8
Not shown


F8
Not shown


G8
Not shown


H8
Not shown


J8
Not shown


K8
Not shown


L8
Not shown


M8
Not shown


N8
Not shown


P8
Not shown


Q8
Not shown


R8
Not shown


Table 8 - Not Shown

Subtask 28-42-00-740-058-F ** ON A/C NOT FOR ALL
C. Discrete Input Parameters
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
   (1) Refer to the TSM only after the Input Parameter state has been found. The grid reference gives the Discrete Input state.
For example:
     (a) the letter A = the first column and the number 1 = the first row. The grid reference for the first input state is A1. See table 1 for row 1 states.
     (b) the letter R = the last column and the number 8 = the last row. The grid reference for the last input state is R8. See table 8 for row 8 states.
Input Parameter values that are defective or not available may be replaced by crosses (xx) or an asterisk.
GRID REF
DISCRETE
STATE 1
STATE 0
A1
Not used


B1
EEPROM ready discrete line
Ready
Fault
C1
Not used


D1
Own fail return
Fail
No fault
E1
Not used


F1
Not used


G1
Not used


H1
Other fail
Fail
No fault
J1
LOGIC-1 (IDG) FLSCU-2
Open
Not Open
K1
BITE 4 Lane 2 return
Fault
No fault
L1
FLSCU-2 LS7 (6QJ) CTR TK HI LVL (dummy load)
Ready
Fault
M1
Left inner low level sensor LS10 (38QJ1) - wet
Wet
Not wet
N1
Left inner underfull sensor LS15 (26QJ1) - wet
Wet
Not wet
P1
Not used


Q1
Delatch lane B return
Ready
Fault
R1
Battery power
Ready
Fault
Table 1 - First Row

GRID REF
DISCRETE
STATE 1
STATE 0
A2
ARINC Output 1
Ready
Fault
B2
ARINC Output 2
Ready
Fault
C2
ARINC Output 3
Ready
Fault
D2
Other lane 5V present
Ready
Fault
E2
ARINC Input 1
Ready
Fault
F2
ARINC Input 2
Ready
Fault
G2
ARINC Input 3
Ready
Fault
H2
Not used


J2
Right inner TEMP sensor T1 (29QJ2) - high
High
Low
K2
BITE 3 Lane 2 return
Fault
No fault
L2
Right inner full sensor LS12 (27QJ2) - wet
Wet
Not wet
M2
Left inner underfull sensor LS14 (25QJ1) - wet
Wet
Not wet
N2
FLSCU-1 Sensor failure
Fail
No fault
P2
Not used


Q2
Delatch lane B return
Delatch
Fault
R2
Cockpit preselector TX fault/not powered
Fault
Operation
Table 2 - Second Row

GRID REF
DISCRETE
STATE 1
STATE 0
A3
ARINC Multiplexor 1
Operation
Fault
B3
ARINC Multiplexer 2
Operation
Fault
C3
ARINC Multiplexer 3
Operation
Fault
D3
Not used


E3
Not used


F3
15 V Fault
Fault
No fault
G3
Not used


H3
Not used


J3
Right inner high level sensor LS3 (17QJ2) - dry
Dry
Not dry
K3
BITE 2 Lane 2 return
Fault
No fault
L3
Right inner underfull sensor LS15 (26QJ2)- wet
Wet
Not wet
M3
Left outer TEMP sensor T2 (30QJ1) - high
High
Low
N3
Left inner high level sensor LS3 (17QJ1) - dry
Dry
Not dry
P3
Left inner low level sensor LS1 (16QJ1) - wet
Wet
Not wet
Q3
Crossfeed valve fault
Fault
No fault
R3
Refuel door open
Open
Not open
Table 3 - Third Row

GRID REF
DISCRETE
STATE 1
STATE 0
A4
Left forward ICT valve open
Open
Not open
B4
Left forward ICT valve shut
Shut
Not shut
C4
Right forward ICT valve open
Open
Not open
D4
Right forward ICT valve shut
Shut
Not shut
E4
Left rear ICT valve open
Open
Not open
F4
Left rear ICT valve shut
Shut
Not shut
G4
Right rear ICT valve open
Open
Not open
H4
Right rear ICT valve shut
Shut
Not shut
J4
CTR TK LO LVL sensor LS6 (22QJ) - dry
Dry
Not dry
K4
BITE 1 Lane 2 return
Fault
No fault
L4
FLSCU-2 Sensor failure
Fault
No fault
M4
LOGIC-2 (CTR TK Pump 1) FLSCU-1 (7QJ) - off
Off
On
N4
CTR TK high level sensor LS7 (20QJ) - dry
Dry
Not dry
P4
Right inner low level sensor LS5 (16QJ2) - wet
Wet
Not wet
Q4
Cockpit refuel selected
Refuel
Fault
R4
Aircraft on ground
On gnd
Off gnd
Table 4 - Fourth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A5
Right refuel valve return
Returned
Not return
B5
Left refuel valve return
Returned
Not return
C5
Center refuel valve return
Returned
Not return
D5
Not used


E5
Not used


F5
Not used


G5
Not used


H5
Not used


J5
Right inner full sensor LS11 (23QJ2) - wet
Wet
Not wet
K5
BITE 4 Lane 2 return
Fault
No fault
L5
Left LO LVL INR MID sensor LS2 (39QJ1) - wet
Wet
Not wet
M5
Not used


N5
Left inner underfull sensor LS13 (24QJ1) - wet
Wet
Not wet
P5
Left inner full sensor LS11 (23QJ1) - wet
Wet
Not wet
Q5
Cockpit preselector decrement
Operation
Fault
R5
Refuel preselector TX fault/not powered
Fault
Operation
Table 5 - Fifth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A6
Not used


B6
Refuel selected
Ready
Fault
C6
Defuel selected
Ready
Fault
D6
Not used


E6
Not used


F6
Not used


G6
Not used


H6
Not used


J6
Right inner underfull sensor LS14 (25QJ2) - wet
Wet
Not wet
K6
BITE 3 Lane 1 return
Fault
No fault
L6
Left inner FWD LO LVL sensor LS5 (15QJ1) - wet
Wet
Not wet
M6
Not used


N6
Left inner temperature sensor T1 (29QJ1) - high
High
Low
P6
Right LO LVL INR MID sensor LS2 (39QJ2) - wet
Wet
Not wet
Q6
Cockpit preselector increment
Increment
Fault
R6
Indicator Tx fault/not powered
Fault
Operation
Table 6 - Sixth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A7
4th tank fitted
Tank
No tank
B7
Center tank fitted
Tank
No tank
C7
LW Ribs 5-6 only dry bays
Fitted
Not fitted
D7
LW and RW Ribs 5-6, 6-6B dry bays
Fitted
Not fitted
E7
Not used


F7
72 Tonne
72 T
Not 72 T
G7
CPU is lane A (1)
Lane A(1)
Fault
H7
Short interrupt from PSU
Inter.
No Inter.
J7
LOGIC-2 (CTR TK Pump 2) FLSCU-2 (9QJ) - Off
Off
On
K7
BITE 2 Lane 1 return
Fault
No fault
L7
Right inner LO LVL sensor LS10 (38QJ2) - wet
Wet
Not wet
M7
Right inner low level sensor LS1 (15QJ2) - wet
Wet
Not wet
N7
LOGIC-1 (IDG) FLSCU-1 (7QJ)
Open
Not open
P7
CTR TK low level sensor LS6 (21QJ) - dry
Dry
Not dry
Q7
Refuel preselector decrement
Decrement
Fault
R7
Refuel bus powered
Ready
Fault
Table 7 - Seventh Row

GRID REF
DISCRETE
STATE 1
STATE 0
A8
Not used


B8
Not used


C8
CPU is lane A (2)
Lane A(2)
Fault
D8
Serial fitted
Fitted
Not fitted
E8
Right refuel valve supplied
Supplied
Not supp.
F8
Left refuel valve supplied
Supplied
Not supp.
G8
Center refuel valve supplied
Supplied
Not supp.
H8
Not used


J8
Right outer TEMP sensor T2 (30QJ2) - high
High
Low
K8
BITE 1 Lane 1 return
Fault
No fault
L8
R inner underfull sensor LS13 (24QJ2) - wet
Wet
Not wet
M8
R surge TK high level sensor LS4 (28QJ2) - dry
Dry
Not dry
N8
L surge TK high level sensor LS4 (28QJ1) - dry
Dry
Not dry
P8
Left inner full sensor LS12 (27QJ1) - wet
Wet
Not wet
Q8
Refuel preselector increment
Increment
Fault
R8
Manual High Level Test
High
Low
Table 8 - Eighth Row

Subtask 28-42-00-740-058-N ** ON A/C NOT FOR ALL
C. Discrete Input Parameters
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
   (1) Refer to the TSM only after the Input Parameter state has been found. The grid reference gives the Discrete Input state.
For example:
     (a) the letter A = the first column and the number 1 = the first row. The grid reference for the first input state is A1. See table 1 for row 1 states.
     (b) the letter R = the last column and the number 8 = the last row. The grid reference for the last input state is R8. See table 8 for row 8 states.
Input Parameter values that are defective or not available may be replaced by crosses (xx) or an asterisk.
GRID REF
DISCRETE
STATE 1
STATE 0
A1
C1 control
Control
No control
B1
Not used


C1
C2 control
Control
No control
D1
Own fail return
Fail
No fault
E1
Not used


F1
Not used


G1
Not used


H1
Other fail
Fail
No fault
J1
LOGIC-1 (IDG) FLSCU-2
Open
Not Open
K1
BITE 4 Lane 2 return
Fault
No fault
L1
FLSCU-2 LS7 (6QJ) CTR TK HI LVL (dummy load)
Ready
Fault
M1
Left inner low level sensor LS10 (38QJ1) - wet
Wet
Not wet
N1
Left inner underfull sensor LS15 (26QJ1) - wet
Wet
Not wet
P1
Not used


Q1
Delatch channel 2 return
Ready
Fault
R1
Battery power
Ready
Fault
Table 1 - First Row

GRID REF
DISCRETE
STATE 1
STATE 0
A2
Not used


B2
Not used


C2
Not used


D2
Other lane 5V present
Ready
Fault
E2
Not used


F2
Not used


G2
Not used


H2
Not used


J2
Right inner TEMP sensor T1 (29QJ2) - high
High
Low
K2
BITE 3 Lane 2 return
Fault
No fault
L2
Right inner full sensor LS12 (27QJ2) - wet
Wet
Not wet
M2
Left inner underfull sensor LS14 (25QJ1) - wet
Wet
Not wet
N2
FLSCU-1 Sensor failure
Fail
No fault
P2
Not used


Q2
Delatch channel 1 return
Delatch
Fault
R2
Cockpit preselector TX fault/not powered
Fault
Operation
Table 2 - Second Row

GRID REF
DISCRETE
STATE 1
STATE 0
A3
Not used


B3
Not used


C3
Not used


D3
Not used


E3
Not used


F3
15 V Fault
Fault
No fault
G3
Not used


H3
Not used


J3
Right inner high level sensor LS3 (17QJ2) - dry
Dry
Not dry
K3
BITE 2 Lane 2 return
Fault
No fault
L3
Right inner underfull sensor LS15 (26QJ2)- wet
Wet
Not wet
M3
Left outer TEMP sensor T2 (30QJ1) - high
High
Low
N3
Left inner high level sensor LS3 (17QJ1) - dry
Dry
Not dry
P3
Left inner low level sensor LS1 (16QJ1) - wet
Wet
Not wet
Q3
Crossfeed valve fault
Fault
No fault
R3
Refuel door open
Open
Not open
Table 3 - Third Row

GRID REF
DISCRETE
STATE 1
STATE 0
A4
Left forward ICT valve open
Open
Not open
B4
Left forward ICT valve shut
Shut
Not shut
C4
Right forward ICT valve open
Open
Not open
D4
Right forward ICT valve shut
Shut
Not shut
E4
Left rear ICT valve open
Open
Not open
F4
Left rear ICT valve shut
Shut
Not shut
G4
Right rear ICT valve open
Open
Not open
H4
Right rear ICT valve shut
Shut
Not shut
J4
CTR TK LO LVL sensor LS6 (22QJ) - dry
Dry
Not dry
K4
BITE 1 Lane 2 return
Fault
No fault
L4
FLSCU-2 Sensor failure
Fault
No fault
M4
LOGIC-2 (CTR TK Pump 1) FLSCU-1 (7QJ) - off
Off
On
N4
CTR TK high level sensor LS7 (20QJ) - dry
Dry
Not dry
P4
Right inner low level sensor LS5 (16QJ2) - wet
Wet
Not wet
Q4
Cockpit refuel selected
Refuel
Fault
R4
Aircraft on ground
On gnd
Off gnd
Table 4 - Fourth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A5
Right refuel valve command
Returned
Not return
B5
Left refuel valve command
Returned
Not return
C5
Center refuel valve command
Returned
Not return
D5
Not used


E5
Not used


F5
Not used


G5
Not used


H5
Not used


J5
Right inner full sensor LS11 (23QJ2) - wet
Wet
Not wet
K5
BITE 4 Lane 2 return
Fault
No fault
L5
Left LO LVL INR MID sensor LS2 (39QJ1) - wet
Wet
Not wet
M5
Not used


N5
Left inner underfull sensor LS13 (24QJ1) - wet
Wet
Not wet
P5
Left inner full sensor LS11 (23QJ1) - wet
Wet
Not wet
Q5
Cockpit preselector decrement
Operation
Fault
R5
Refuel preselector TX fault/not powered
Fault
Operation
Table 5 - Fifth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A6
Not used


B6
Refuel selected
Ready
Fault
C6
Defuel selected
Ready
Fault
D6
Watchdog is alert
Alert
Not alert
E6
Not used


F6
Not used


G6
Not used


H6
Not used


J6
Right inner underfull sensor LS14 (25QJ2) - wet
Wet
Not wet
K6
BITE 3 Lane 1 return
Fault
No fault
L6
Left inner FWD LO LVL sensor LS5 (15QJ1) - wet
Wet
Not wet
M6
Not used


N6
Left inner temperature sensor T1 (29QJ1) - high
High
Low
P6
Right LO LVL INR MID sensor LS2 (39QJ2) - wet
Wet
Not wet
Q6
Cockpit preselector increment
Increment
Fault
R6
Indicator Tx fault/not powered
Fault
Operation
Table 6 - Sixth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A7
Not used


B7
Center tank fitted
Tank
No tank
C7
LW Ribs 5-6 only dry bays
Fitted
Not fitted
D7
LW and RW Ribs 5-6, 6-6B dry bays
Fitted
Not fitted
E7
Not used


F7
72 Tonne
72 T
Not 72 T
G7
CPU is lane A (1)
Lane A(1)
Fault
H7
Short interrupt from PSU
Inter.
No Inter.
J7
LOGIC-2 (CTR TK Pump 2) FLSCU-2 (9QJ) - Off
Off
On
K7
BITE 2 Lane 1 return
Fault
No fault
L7
Right inner LO LVL sensor LS10 (38QJ2) - wet
Wet
Not wet
M7
Right inner low level sensor LS1 (15QJ2) - wet
Wet
Not wet
N7
LOGIC-1 (IDG) FLSCU-1 (7QJ)
Open
Not open
P7
CTR TK low level sensor LS6 (21QJ) - dry
Dry
Not dry
Q7
Refuel preselector decrement
Decrement
Fault
R7
Refuel bus powered
Ready
Fault
Table 7 - Seventh Row

GRID REF
DISCRETE
STATE 1
STATE 0
A8
Not used


B8
Not used


C8
CPU is lane A (2)
Lane A(2)
Fault
D8
No dry bays
Fitted
Not fitted
E8
Right refuel valve supplied
Supplied
Not supp.
F8
Left refuel valve supplied
Supplied
Not supp.
G8
Center refuel valve supplied
Supplied
Not supp.
H8
Not used


J8
Right outer TEMP sensor T2 (30QJ2) - high
High
Low
K8
BITE 1 Lane 1 return
Fault
No fault
L8
R inner underfull sensor LS13 (24QJ2) - wet
Wet
Not wet
M8
R surge TK high level sensor LS4 (28QJ2) - dry
Dry
Not dry
N8
L surge TK high level sensor LS4 (28QJ1) - dry
Dry
Not dry
P8
Left inner full sensor LS12 (27QJ1) - wet
Wet
Not wet
Q8
Refuel preselector increment
Increment
Fault
R8
Manual High Level Test
High
Low
Table 8 - Eighth Row

Subtask 28-42-00-740-058-P ** ON A/C NOT FOR ALL
C. Discrete Input Parameters
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
   (1) Refer to the TSM only after the input parameter state is found. The grid reference gives the discrete input state.
For example:
     (a) Letter A = the first column and number 1 = the first row. The grid reference for the first input state is A1. See table 1 for row 1 states.
     (b) Letter R = the last column and number 8 = the last row. The grid reference for the last input state is R8. See table 8 for row 8 states.
Input parameter values that are defective or not available are replaced by crosses (xx) or an asterisk.
GRID REF
DISCRETE
STATE 1
STATE 0
A1
C1 control
Control
No control
B1
Not used


C1
C2 control
Control
No control
D1
Own fail return
Fail
No fault
E1
Not used


F1
Not used


G1
Not used


H1
Other fail
Fail
No fault
J1
LOGIC-1 (IDG) FLSCU-2
Open
Not Open
K1
BITE 4 Lane 2 return
Fault
No fault
L1
FLSCU-2 LS7 (6QJ) CTR TK HI LVL (dummy load)
Ready
Fault
M1
Left inner low level sensor LS10 (38QJ1) - wet
Wet
Not wet
N1
Left inner underfull sensor LS15 (26QJ1) - wet
Wet
Not wet
P1
Not used


Q1
Delatch channel 2 return
Ready
Fault
R1
Battery power
Ready
Fault
Table 1 - First Row

GRID REF
DISCRETE
STATE 1
STATE 0
A2
Not used


B2
Not used


C2
Not used


D2
Other lane 5V present
Ready
Fault
E2
Not used


F2
Not used


G2
Not used


H2
Not used


J2
Right inner TEMP sensor T1 (29QJ2) - high
High
Low
K2
BITE 3 Lane 2 return
Fault
No fault
L2
Right inner full sensor LS12 (27QJ2) - wet
Wet
Not wet
M2
Left inner underfull sensor LS14 (25QJ1) - wet
Wet
Not wet
N2
FLSCU-1 Sensor failure
Fail
No fault
P2
Not used


Q2
Delatch channel 1 reutrn
Delatch
Fault
R2
Cockpit preselector TX fault/not powered
Fault
Operation
Table 2 - Second Row

GRID REF
DISCRETE
STATE 1
STATE 0
A3
Not used


B3
Not used


C3
Not used


D3
Not used


E3
Not used


F3
15 V Fault
Fault
No fault
G3
Not used


H3
Not used


J3
Right inner high level sensor LS3 (17QJ2) - dry
Dry
Not dry
K3
BITE 2 Lane 2 return
Fault
No fault
L3
Right inner underfull sensor LS15 (26QJ2)- wet
Wet
Not wet
M3
Left outer TEMP sensor T2 (30QJ1) - high
High
Low
N3
Left inner high level sensor LS3 (17QJ1) - dry
Dry
Not dry
P3
Left inner low level sensor LS1 (16QJ1) - wet
Wet
Not wet
Q3
Crossfeed valve fault
Fault
No fault
R3
Refuel door open
Open
Not open
Table 3 - Third Row

GRID REF
DISCRETE
STATE 1
STATE 0
A4
Left forward ICT valve open
Open
Not open
B4
Left forward ICT valve shut
Shut
Not shut
C4
Right forward ICT valve open
Open
Not open
D4
Right forward ICT valve shut
Shut
Not shut
E4
Left rear ICT valve open
Open
Not open
F4
Left rear ICT valve shut
Shut
Not shut
G4
Right rear ICT valve open
Open
Not open
H4
Right rear ICT valve shut
Shut
Not shut
J4
CTR TK LO LVL sensor LS6 (22QJ) - dry
Dry
Not dry
K4
BITE 1 Lane 2 return
Fault
No fault
L4
FLSCU-2 Sensor failure
Fault
No fault
M4
LOGIC-2 (CTR TK Pump 1) FLSCU-1 (7QJ) - off
Off
On
N4
CTR TK high level sensor LS7 (20QJ) - dry
Dry
Not dry
P4
Right inner low level sensor LS5 (16QJ2) - wet
Wet
Not wet
Q4
Cockpit refuel selected
Refuel
Fault
R4
Aircraft on ground
On gnd
Off gnd
Table 4 - Fourth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A5
Right refuel valve command
Returned
Not return
B5
Left refuel valve command
Returned
Not return
C5
Center refuel valve command
Returned
Not return
D5
Not used


E5
Not used


F5
Not used


G5
Not used


H5
Not used


J5
Right inner full sensor LS11 (23QJ2) - wet
Wet
Not wet
K5
BITE 4 Lane 2 return
Fault
No fault
L5
Left LO LVL INR MID sensor LS2 (39QJ1) - wet
Wet
Not wet
M5
Not used


N5
Left inner underfull sensor LS13 (24QJ1) - wet
Wet
Not wet
P5
Left inner full sensor LS11 (23QJ1) - wet
Wet
Not wet
Q5
Cockpit preselector decrement
Operation
Fault
R5
Refuel preselector TX fault/not powered
Fault
Operation
Table 5 - Fifth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A6
Not used


B6
Refuel selected
Ready
Fault
C6
Defuel selected
Ready
Fault
D6
Watchdog is alert
Alert
Not alert
E6
Not used


F6
Not used


G6
Not used


H6
Not used


J6
Right inner underfull sensor LS14 (25QJ2) - wet
Wet
Not wet
K6
BITE 3 Lane 1 return
Fault
No fault
L6
Left inner FWD LO LVL sensor LS5 (15QJ1) - wet
Wet
Not wet
M6
Not used


N6
Left inner temperature sensor T1 (29QJ1) - high
High
Low
P6
Right LO LVL INR MID sensor LS2 (39QJ2) - wet
Wet
Not wet
Q6
Cockpit preselector increment
Increment
Fault
R6
Indicator Tx fault/not powered
Fault
Operation
Table 6 - Sixth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A7
Not used


B7
Center tank fitted
Tank
No tank
C7
LW Ribs 5-6 only dry bays
Fitted
Not fitted
D7
LW and RW Ribs 5-6, 6-6B dry bays
Fitted
Not fitted
E7
Not used


F7
72 Tonne
72 T
Not 72 T
G7
CPU is lane A (1)
Lane A(1)
Fault
H7
Short interrupt from PSU
Inter.
No Inter.
J7
LOGIC-2 (CTR TK Pump 2) FLSCU-2 (9QJ) - Off
Off
On
K7
BITE 2 Lane 1 return
Fault
No fault
L7
Right inner LO LVL sensor LS10 (38QJ2) - wet
Wet
Not wet
M7
Right inner low level sensor LS1 (15QJ2) - wet
Wet
Not wet
N7
LOGIC-1 (IDG) FLSCU-1 (7QJ)
Open
Not open
P7
CTR TK low level sensor LS6 (21QJ) - dry
Dry
Not dry
Q7
Refuel preselector decrement
Decrement
Fault
R7
Refuel bus powered
Ready
Fault
Table 7 - Seventh Row

GRID REF
DISCRETE
STATE 1
STATE 0
A8
Not used


B8
Not used


C8
CPU is lane A (2)
Lane A(2)
Fault
D8
No dry bays
Fitted
Not fitted
E8
Right refuel valve supplied
Supplied
Not supp.
F8
Left refuel valve supplied
Supplied
Not supp.
G8
Center refuel valve supplied
Supplied
Not supp.
H8
Not used


J8
Right outer TEMP sensor T2 (30QJ2) - high
High
Low
K8
BITE 1 Lane 1 return
Fault
No fault
L8
R inner underfull sensor LS13 (24QJ2) - wet
Wet
Not wet
M8
R surge TK high level sensor LS4 (28QJ2) - dry
Dry
Not dry
N8
L surge TK high level sensor LS4 (28QJ1) - dry
Dry
Not dry
P8
Left inner full sensor LS12 (27QJ1) - wet
Wet
Not wet
Q8
Refuel preselector increment
Increment
Fault
R8
Manual High Level Test
High
Low
Table 8 - Eighth Row

Subtask 28-42-00-740-058-Q ** ON A/C NOT FOR ALL
C. Discrete Input Parameters
F Input Parameters - Page 4 (FQIS Discrete Inputs) ** ON A/C NOT FOR ALL
   (1) Refer to the TSM only after the input parameter state is found. The grid reference gives the discrete input state.
For example:
     (a) Letter A = the first column and number 1 = the first row. The grid reference for the first input state is A1. See table 1 for row 1 states.
     (b) Letter R = the last column and number 8 = the last row. The grid reference for the last input state is R8. See table 8 for row 8 states.
Input parameter values that are defective or not available are replaced by crosses (xx) or an asterisk.
GRID REF
DISCRETE
STATE 1
STATE 0
A1
ACT1 fitted
Fitted
Not fitted
B1
ACT2 fitted
Fitted
Not fitted
C1
LH & RH Ribs dry (spare)
Set
Not set
D1
LH Ribs dry (spare)
Set
Not set
E1
ACT 1 fitted
Fitted
Not fitted
F1
ACT 2 fitted
Fitted
Not fitted
G1
Lb/Kg
LBS
KG
H1
A321/A320 A
A321
A320
J1
A321/A320 B (spare)
A321
A320
K1
Program pin parity
Set
Not set
L1
Not used


M1
Not used


N1
Not used


P1
Not used


Q1
Not used


R1
Not used


Table 1 - First Row

GRID REF
DISCRETE
STATE 1
STATE 0
A2
Cockpit refuel priority
On
Off
B2
Defuel selected
Defuel
No defuel
C2
High level test
On
Off
D2
Refuel bus powered
Yes
No
E2
Refuel selected
Selected
Not select
F2
Crossfeed valve monitor
Fail
OK
G2
Surge wet W/L - battery refuel
Wet
Dry
H2
Refuel panel door open
Open
Not open
J2
Battery/Main - refuel
Bat
Main
K2
Cockpit preselector fault
Fail
OK
L2
Refuel panel preselector fault
Fail
OK
M2
Refuel panel indicator fault
Fail
OK
N2
Cockpit increment
Inc
Not inc
P2
Cockpit decrement
Dec
Not dec
Q2
Refuel panel increment
Inc
Not inc
R2
Refuel panel decrement
Dec
Not dec
Table 2 - Second Row

GRID REF
DISCRETE
STATE 1
STATE 0
A3
FLSCU-1 Left wing low level LS1 (16QJ1)
Wet
Dry
B3
FLSCU-1 Right wing low level LS2 (39QJ2)
Wet
Dry
C3
FLSCU-1 Left wing high level LS3 (17QJ1)
Dry
Wet
D3
FLSCU-1 Left surge high level LS4 (28QJ1)
Dry
Wet
E3
FLSCU-1 Right wing low level LS5 (15QJ2)
Wet
Dry
F3
FLSCU-1 Center low level LS6 (21QJ)
Dry
Wet
G3
FLSCU-1 Center high level LS7 (20QJ)
Dry
Wet
H3
FLSCU-1 Left wing low level LS8 (40QJ1)
Wet
Dry
J3
FLSCU-1 Left wing low level LS10 (38QJ1)
Dry
Wet
K3
FLSCU-1 Left wing full A LS11 (23QJ1)
Dry
Wet
L3
FLSCU-1 Left wing full B LS12 (27QJ1)
Dry
Wet
M3
FLSCU-1 L wing underfull A sensor LS13 (24QJ1)
Dry
Wet
N3
FLSCU-1 L wing underfull B sensor LS14 (25QJ1)
Dry
Wet
P3
FLSCU-1 L wing underfull C sensor LS15 (26QJ1)
Dry
Wet
Q3
Not used


R3
Not used


Table 3 - Third Row

GRID REF
DISCRETE
STATE 1
STATE 0
A4
FLSCU-2 Right wing low level LS1 (16QJ2)
Wet
Dry
B4
FLSCU-2 Left wing low level LS2 (39QJ1)
Wet
Dry
C4
FLSCU-2 Right wing high level LS3 (17QJ2)
Dry
Wet
D4
FLSCU-2 Right surge high level LS4 (28QJ2)
Dry
Wet
E4
FLSCU-2 Left wing low level LS5 (15QJ1)
Wet
Dry
F4
FLSCU-2 Center low level LS6 (22QJ)
Dry
Wet
G4
FLSCU-2 Center high level dummy LS7 (6QJ)
Dry
Wet
H4
FLSCU-2 Right wing low level LS8 (40QJ2)
Wet
Dry
J4
FLSCU-2 Right wing low level LS10 (38QJ2)
Dry
Wet
K4
FLSCU-2 Right wing full A LS11 (23QJ2)
Dry
Wet
L4
FLSCU-2 Right wing full B LS12 (27QJ2)
Dry
Wet
M4
FLSCU-2 R wing underfull A sensor LS13 (24QJ2)
Dry
Wet
N4
FLSCU-2 R wing underfull B sensor LS14 (25QJ2)
Dry
Wet
P4
FLSCU-2 R wing underfull C sensor LS15 (26QJ2)
Dry
Wet
Q4
Not used


R4
Not used


Table 4 - Fourth Row

NOTE: FLSCU-2 Center high level dummy LS7 (6QJ) is located in the avionics bay.
GRID REF
DISCRETE
STATE 1
STATE 0
A5
FLSCU-1 Logic-1 Left wing IDG cooling
Open
Shut
B5
FLSCU-1 Logic-2 center tank pump control
Off
On
C5
FLSCU-1 Sensor failure monitor
Fail
OK
D5
FLSCU-1 T1 Left temperature sensor (29QJ1)
>T
<T
E5
FLSCU-1 T2 Left temperature sensor dummy (41QJ)
>T
<T
F5
FLSCU-2 Logic-1 Right wing IDG cooling
Open
Shut
G5
FLSCU-2 Logic-2 Center tank pump control
Off
On
H5
FLSCU-2 Sensor failure monitor
Fail
OK
J5
FLSCU-2 T1 Right temperature sensor (29QJ2)
>T
<T
K5
FLSCU-2 T2 Right TEMP sensor dummy (42QJ)
>T
<T
L5
Not used


M5
Not used


N5
Not used


P5
Not used


Q5
Not used


R5
Not used


Table 5 - Fifth Row

X/Y
Discrete Input description
SIG ID
SIG Name
State 1
State 0
6a
FLSCU3 LS1 ACT1 Low level 1
166
FL3LS1
WET
DRY
6b
FLSCU3 LS2 ACT2 Low Level 2
167
FL3LS2
WET
DRY
6c
FLSCU3 LS3 ACT1 High Level
168
FL3LS3
DRY
WET
6d
FLSCU3 LS4 (Not Used)
169
FL3LS4
N/A
N/A
6e
FLSCU3 LS5 ACT1 Low Level 2
170
FL3LS5
WET
DRY
6f
FLSCU3 LS6 (Not Used)
171
FL3LS6
N/A
N/A
6g
FLSCU3 LS7 ACT2 High Level
172
FL3LS7
DRY
WET
6h
FLSCU3 LS8 ACT2 Low Level 1
173
FL3LS8
WET
DRY
6j
FLSCU 3 Sensor Failure Monitor
174
FL3FSM
FAIL
OK
K6
Not used




L6
Not used




M6
Not used




N6
Not used




P6
Not used




Q6
Not used




R6
Not used




Table 6 - Sixth Row

GRID REF
DISCRETE
STATE 1
STATE 0
A7
Left normal selected
Norm
Not norm
B7
Center normal selected
Norm
Not norm
C7
Right normal selected
Norm
Not norm
D7
ACT 1 normal selected
Norm
Not norm
E7
ACT 2 normal selected
Norm
Not norm
F7
Ground/Flight
Ground
Flight
G7
Spattial config - mod I/P
On
Off
H7
Not used


J7
Not used


K7
Not used


L7
Not used


M7
Not used


N7
Not used


P7
Not used


Q7
Not used


R7
Not used


Table 7 - Seventh Row

GRID REF
DISCRETE
STATE 1
STATE 0
A8
Not shown


B8
Not shown


C8
Not shown


D8
Not shown


E8
Not shown


F8
Not shown


G8
Not shown


H8
Not shown


J8
Not shown


K8
Not shown


L8
Not shown


M8
Not shown


N8
Not shown


P8
Not shown


Q8
Not shown


R8
Not shown


Table 8 - Not Shown

5. Close-up
Subtask 28-42-00-860-055-A
A. Aircraft Maintenance Configuration
   (1) Put the aircraft back to its initial configuration.
     (a) On the MCDU, push the line key adjacent to the RETURN indication until the MCDU Menu page comes into view.
     (b) On the MCDU, set the BRT knob to OFF.
     (c) If applicable, do the ADIRS stop procedure (Ref. AMM TASK 34-10-00-860-005).
     (d) Do the EIS stop procedure (Ref. AMM TASK 31-60-00-860-002).
     (e) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
Subtask 28-42-00-410-050-A
B. Close Access
   (1) Close the access door 192MB.
[Rev.10 from 2021] 2026.04.02 06:18:05 UTC
"WTRUIB" 2025