W DOC AIRBUS | AMM A320F

Installation of the Turbine Cooling Air (TCA) Tubes [IAE]

TASK 75-23-49-400-010-A
Installation of the Turbine Cooling Air (TCA) Tubes

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 2M (6 FT) - ADJUSTABLE
No specific
AR
WARNING NOTICE(S)
No specific
Torque wrench: range to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T
No specific
Torque wrench: range to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T
 B. Consumable Materials
REFERENCE
DESIGNATION
(Material No.V02-126)
lockwire
 C. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
FOR [1000EM1] (ENGINE-1)
437AL, 438AR, 451AL, 452AR
FOR [1000EM2] (ENGINE-2)
447AL, 448AR, 461AL, 462AR
 D. Expendable Parts
FIG.ITEM
DESIGNATION
IPC-CSN
10
METAL C SEAL
AIPC 75-23-49-80-040
9
METAL C SEAL
AIPC 75-23-49-80-040
1
METAL C SEAL
AIPC 75-23-49-80-050
12
METAL C SEAL
AIPC 75-23-49-80-050
1
METAL C SEAL
AIPC 75-23-49-81-040
14
METAL C SEAL
AIPC 75-23-49-81-050
9
METAL C SEAL
AIPC 75-23-49-81-050
 E. Referenced Information
REFERENCE
DESIGNATION
TASK 70-23-11-911-013-A
General Torque Tightening Techniques
TASK 70-40-11-911-014-A
Locking Devices General Information
TASK 71-13-00-010-010-A
Opening of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 71-13-00-410-010-A
Closing of the Fan Cowls 437AL(447AL),438AR(448AR)
TASK 78-30-00-040-012-A
Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance
TASK 78-30-00-440-012-A
Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance
TASK 78-32-00-010-010-A
Opening of the Thrust Reverser Halves
TASK 78-32-00-410-010-A
Closing of the Thrust Reverser Halves
F Turbine Cooling Air Tubes
3. Job Set-up
Subtask 75-23-49-860-050-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 2M (6 FT) - ADJUSTABLE is in position.
Subtask 75-23-49-010-051-A ** ON A/C NOT FOR ALL
B. Get Access
   (1) Make sure that the fan cowl doors are open: (Ref. AMM TASK 71-13-00-010-010)
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR
   (2) Make sure that the thrust reverser doors are open: (Ref. AMM TASK 78-32-00-010-010)
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR
Subtask 75-23-49-040-050-A ** ON A/C NOT FOR ALL
C. Make sure that the thrust reverser Hydraulic Control Unit (HCU) is deactivated: (Ref. AMM TASK 78-30-00-040-012)
4. Procedure
Subtask 75-23-49-420-050-A ** ON A/C NOT FOR ALL
A. Install the TCA tube (2) on the engine.
   (1) Install a new AIPC 75-23-49-80-050 METAL C SEAL (12) at the HP turbine case.
   (2) Install a new AIPC 75-23-49-80-040 METAL C SEAL (9) at the HP compressor case.
   (3) Put the TCA tube (2) in position.
   (4) Install the bracket (10) and the four bolts (11) at the HP compressor case.
   (5) TORQUE the four bolts (11) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (6) Install the four bolts (1) at the HP turbine case.
   (7) TORQUE the four bolts (1) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (8) Safety the four bolts (1) with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
   (9) Install the clamp (4) on the TCA tube (2).
   (10) Put the clamp (4) adjacent to the bracket.
   (11) Install the bolt (3) and the nut (5).
   (12) TORQUE the nut (5) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (13) Install the clamp (7) on the TCA tube (2).
   (14) Put the clamp (7) adjacent to the bracket.
   (15) Install the bolt (8) and the nut (6).
   (16) TORQUE the nut (6) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
Subtask 75-23-49-420-051-A ** ON A/C NOT FOR ALL
B. Install the TCA tube (2) on the engine.
   (1) Install a new AIPC 75-23-49-80-050 METAL C SEAL (1) at the HP turbine case.
   (2) Install a new AIPC 75-23-49-80-040 METAL C SEAL (10) at the HP compressor case.
   (3) Put the TCA tube (2) in position.
   (4) Install the four bolts (9) at the HP compressor case.
   (5) TORQUE the four bolts (9) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (6) Install the four bolts (11) at the HP turbine case.
   (7) TORQUE the four bolts (11) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (8) Safety the four bolts (11) with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
   (9) Install the clamp (5) on the TCA tube (2).
   (10) Put the clamp (5) adjacent to the bracket.
   (11) Install the bolt (3) and the nut (4).
   (12) TORQUE the nut (4) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (13) Install the clamp (7) on the TCA tube (2).
   (14) Put the clamp (7) adjacent to the bracket.
   (15) Install the bolt (8) and the nut (6).
   (16) TORQUE the nut (6) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
Subtask 75-23-49-420-052-A ** ON A/C NOT FOR ALL
C. Install the TCA tube (2) on the engine.
   (1) Install a new AIPC 75-23-49-81-050 METAL C SEAL (9) at the HP turbine case.
   (2) Install a new AIPC 75-23-49-81-040 METAL C SEAL (1) at the HP compressor case.
   (3) Put the TCA tube (2) in position.
   (4) Install the four bolts (11) at the HP compressor case.
   (5) TORQUE the four bolts (11) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (6) Install the four bolts (10) at the HP turbine case.
   (7) TORQUE the four bolts (10) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (8) Safety the four bolts (10) with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
   (9) Install the clamp (4) on the TCA tube (2).
   (10) Put the clamp (4) adjacent to the bracket.
   (11) Install the bolt (3) and the nut (5).
   (12) TORQUE the nut (5) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (13) Install the clamp (8) on the TCA tube (2).
   (14) Put the clamp (8) adjacent to the bracket.
   (15) Install the bolt (7) and the nut (6).
   (16) TORQUE the nut (6) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
Subtask 75-23-49-420-053-A ** ON A/C NOT FOR ALL
D. Install the TCA tube (2) on the engine.
   (1) Install a new AIPC 75-23-49-81-050 METAL C SEAL (14) at the HP turbine case.
   (2) Install a new AIPC 75-23-49-81-040 METAL C SEAL (1) at the HP compressor case.
   (3) Put the TCA tube (2) in position.
   (4) Install the four bolts (15) at the HP compressor case.
   (5) TORQUE the four bolts (15) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (6) Install the bracket (13) and the four bolts (9) at the HP turbine case.
   (7) TORQUE the four bolts (9) to between 220 and 180 lbf.in (2.49 and 2.03 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (8) Safety the four bolts (9) with lockwire (Material No.V02-126) (Ref. AMM TASK 70-40-11-911-014).
   (9) Install the clamp (11) on the bracket (13).
   (10) Install the bolt (12) and the nut (10).
   (11) TORQUE the nut (10) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (12) Install the clamp (5) on the TCA tube (2).
   (13) Put the clamp (5) adjacent to the bracket.
   (14) Install the bolt (4) and the nut (3).
   (15) TORQUE the nut (3) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
   (16) Install the clamp (7) on the TCA tube (2).
   (17) Put the clamp (7) adjacent to the bracket.
   (18) Install the bolt (8) and the nut (6).
   (19) TORQUE the nut (6) to between 45 and 36 lbf.in (0.51 and 0.41 m.daN ) T (Ref. AMM TASK 70-23-11-911-013).
5. Close-up
Subtask 75-23-49-410-051-A ** ON A/C NOT FOR ALL
A. Close Access
   (1) Make sure that the work area is clean and clear of tools and other items.
   (2) Close the thrust reverser halves (Ref. AMM TASK 78-32-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
451AL 452AR.
     (b) FOR [1000EM2] (ENGINE-2)
461AL 462AR.
Subtask 75-23-49-440-050-A ** ON A/C NOT FOR ALL
B. Activate the thrust reverser HCU (Ref. AMM TASK 78-30-00-440-012).
Subtask 75-23-49-410-050-A ** ON A/C NOT FOR ALL
C. Close Access
   (1) Close the fan cowls (Ref. AMM TASK 71-13-00-410-010):
     (a) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
     (b) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
   (2) Remove the access platform(s).
   (3) Remove the WARNING NOTICE(S).
[Rev.10 from 2021] 2026.04.01 03:11:16 UTC
"Aviabrain" 2025