W DOC AIRBUS | AMM A320F

Installation of the Compressor Discharge Temperature (T3) Sensor [CFMI]

TASK 77-23-10-400-001-A
Installation of the Compressor Discharge Temperature (T3) Sensor

FIN: 1000EM1 ** ON A/C NOT FOR ALL
FIN: 1000EM2 ** ON A/C NOT FOR ALL
1. Reason for the Job
Self explanatory
2. Job Set-up Information
 A. Fixtures, Tools, Test and Support Equipment
REFERENCE
QTY
DESIGNATION
No specific
AR
ACCESS PLATFORM 1M(3 FT)
No specific
AR
PLIERS - JAWED, SOFT
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.CP2101)
graphite grease
(Material No.CP8001)
lockwire 0.032 in. (0.8 mm) dia.
(Material No.CP8002)
lockwire 0.032 in. (0.8 mm) dia
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
90
METAL O-RING GASKET
AIPC 77-23-10-01-060
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 31-32-00-860-012-A
Procedure to Get Access to the SYSTEM REPORT/TEST/ENG Page
TASK 71-13-00-010-040-A
Opening of the Fan Cowl Doors
TASK 71-13-00-410-040-A
Closing of the Fan Cowl Doors
TASK 73-29-00-710-040-A-02
Operational Test of the FADEC on the Ground (with Engine non Motoring)
TASK 78-30-00-081-041-A
Make the Thrust Reverser Serviceable after Maintenance
TASK 78-30-00-481-041-A
Make the Thrust Reverser Unserviceable for Maintenance
TASK 78-36-00-010-040-A
Opening of the Thrust Reverser Doors
TASK 78-36-00-410-040-A
Closing of the Thrust Reverser Doors
F T3 Temperature Sensor - PRE SB 77-016
F T3 Temperature Sensor - POST SB 77-016
3. Job Set-up
Subtask 77-23-10-860-050-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
   (1) On the center pedestal, on the ENG panel 115VU, make sure that a WARNING NOTICE(S) is in position to tell persons not to start the engine.
   (2) On the overhead maintenance panel 50VU, make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off. Make sure that a WARNING NOTICE(S) is in position to tell persons not to energize the FADEC 1(2).
   (3) Make sure that the ACCESS PLATFORM 1M(3 FT) is in position.
Subtask 77-23-10-010-055-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the fan cowl doors are open (Ref. AMM TASK 71-13-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Make sure that the left thrust reverser cowl door is open (Ref. AMM TASK 78-36-00-010-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL
     (b) FOR [1000EM2] (ENGINE-2)
461AL
Subtask 77-23-10-040-053-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser is unserviceable (Ref. AMM TASK 78-30-00-481-041).
4. Procedure
Subtask 77-23-10-420-050-A ** ON A/C NOT FOR ALL
A. Installation of the Compressor Discharge Temperature (T3) Sensor
CAUTION: DO NOT BEND THE CONDUIT THAT CONNECTS THE THERMOCOUPLE PROBE AND THE ELECTRICAL CABLE CONNECTOR UNIT. YOU CAN CAUSE DAMAGE TO THE LEAD INSIDE THE CONDUIT.
   (1) Install a new AIPC 77-23-10-01-060 METAL O-RING GASKET (90) over the combustion case thermocouple probe port.
   (2) Install the thermocouple into the combustion case port and put the electrical cable connector unit in position.
   (3) Lubricate the thermocouple probe bolts (80) with graphite grease (Material No.CP2101) .

PRE SB 77-016

   (4) Install the four bolts (80) in the thermocouple probe flange. TORQUE the bolts (80) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T. Wirelock the bolts (80) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (5) Lubricate the electrical cable connector unit bolts (20) with graphite grease (Material No.CP2101) .
   (6) Attach the electrical cable connector unit to the attachment bracket with bolts (20) and nuts (10). TORQUE the nuts (10) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
   (7) Lubricate the mid-conduit bracket bolt (50) with graphite grease (Material No.CP2101) .
   (8) Install the bolt (50), washer (60), and nut (70) at the mid-conduit bracket. TORQUE the nut (70) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.

END of PRE SB 77-016


POST SB 77-016

   (9) Install the four bolts (80) in the thermocouple probe flange. Do not TORQUE the bolts (80) at this time.
   (10) Lubricate the electrical cable connector unit bolts (20) with graphite grease (Material No.CP2101) .
   (11) Attach the electrical cable connector unit to the attachment bracket with bolts (20) and nuts (10). Do not TORQUE the bolts (20) at this time.
   (12) Lubricate the loop clamp bolt (50) with graphite grease (Material No.CP2101) .
   (13) Install the bolt (50), and nut (70) at the loop clamp (55). Do not TORQUE the nut (70) at this time.
   (14) TORQUE the four bolts (80) in the thermocouple probe flange to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T. Wirelock the bolts (80) with CP8001lockwire 0.032 in. (0.8 mm) dia. or CP8002lockwire 0.032 in. (0.8 mm) dia.
   (15) TORQUE the nuts (10) in the electrical cable connector unit to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.
   (16) TORQUE the nut (70) at the loop clamp (55) to between 70 and 55 lbf.in (0.79 and 0.62 m.daN ) T.

END of SB 77-016

   (17) Remove the CAP-BLANKING from each electrical connector and receptacle.
   (18) Make sure that all the electrical connections are clean and in the correct condition.
   (19) Connect the 2 electrical cable connectors (30) and (40). Tighten the connectors by hand. If necessary, use PLIERS - JAWED, SOFT to fully seat the connectors.
Subtask 77-23-10-410-051-A ** ON A/C NOT FOR ALL
B. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the left thrust reverser door (Ref. AMM TASK 78-36-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
451AL
     (b) FOR [1000EM2] (ENGINE-2)
461AL
   (3) Remove the WARNING NOTICE(S).
Subtask 77-23-10-440-051-A ** ON A/C NOT FOR ALL
C. Make the thrust reverser serviceable (Ref. AMM TASK 78-30-00-081-041).
Subtask 77-23-10-710-050-A ** ON A/C NOT FOR ALL
D. Do these tests:
   (1) Do a FADEC ground test (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
   (2) On the left or right MCDU, get the SYSTEM REPORT/TEST page (Ref. AMM TASK 31-32-00-860-012).
   (3) Push the line key adjacent to the FADEC 1A(1B) for engine 1.
   (4) Push the line key adjacent to the FADEC 2A(2B) for engine 2.
   (5) Make sure that the message T3 SENS, J13, ECU is not in view.
Subtask 77-23-10-710-050-B ** ON A/C NOT FOR ALL
D. Do a FADEC ground test (with engine non motoring) (Ref. AMM TASK 73-29-00-710-040).
5. Close-up
Subtask 77-23-10-410-050-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-040):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.02 06:37:37 UTC
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