DOC AIRBUS | AMM A320FGeneral Visual Inspection of the Turbine Exhaust System [PW11]
TASK 78-11-00-210-801-A
General Visual Inspection of the Turbine Exhaust System
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 78-11-00-941-050-A ** ON A/C NOT FOR ALL
Subtask 78-11-00-410-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:30:17 UTC
General Visual Inspection of the Turbine Exhaust System
WARNING:
WEAR APPLICABLE PERSONAL PROTECTIVE EQUIPMENT (PPE) WHEN YOU DO THIS TASK. BEFORE YOU USE PPE, READ, UNDERSTAND AND OBEY ALL INSTRUCTIONS FOR ITS USE. THESE INSTRUCTIONS INCLUDE INSTRUCTIONS FROM THE MANUFACTURER, YOUR EMPLOYER AND GOVERNMENT REGULATIONS. YOU CAN GET INJURED IF YOU DO NOT USE PPE. GET INSTRUCTIONS FROM YOUR EMPLOYER ON WHICH PPE IS NECESSARY.
WARNING:
BE CAREFUL WHEN YOU DO WORK ON THE ENGINE AND THE ADJACENT COMPONENTS AFTER ENGINE SHUTDOWN. THE ENGINE, THE ENGINE OIL AND THE ADJACENT COMPONENTS CAN STAY HOT FOR A LONG TIME. IF YOU DO NOT OBEY THIS INSTRUCTION, INJURY CAN OCCUR.
ZONE: 400
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 400 | POWER PLANT, NACELLES AND PYLONS |
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR, 473AL, 473AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR, 483AL, 483AR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 54-57-22-000-810-A | Removal of the Rear Mount Fairing (RMF) Door |
| TASK 54-57-22-400-810-A | Installation of the Rear Mount Fairing (RMF) Door |
| TASK 71-00-00-860-833-A | Procedure to Prevent Engine Motoring |
| TASK 71-13-00-010-802-A | Opening of the Fan Cowl Doors |
| TASK 71-13-00-410-802-A | Closing of the Fan Cowl Doors |
| TASK 78-11-01-000-801-A | Removal of the Exhaust Nozzle Assembly |
| TASK 78-11-01-000-802-A | Removal of the Exhaust Fire Seal |
| TASK 78-11-01-000-803-A | Removal of the Exhaust Nozzle Alignment Pin |
| TASK 78-11-01-400-801-A | Installation of the Exhaust Nozzle Assembly |
| TASK 78-11-01-400-802-A | Installation of the Exhaust Fire Seal |
| TASK 78-11-01-400-803-A | Installation of the Exhaust Nozzle Alignment Pin |
| TASK 78-11-03-000-801-A | Removal of the Aft Centerbody Assembly |
| TASK 78-11-03-400-801-A | Installation of the Aft Centerbody Assembly |
| TASK 78-30-00-040-805-A | Deactivation of the Thrust Reverser System for Ground Maintenance |
| TASK 78-30-00-440-805-A | Reactivation of the Thrust Reverser System after Ground Maintenance |
| TASK 78-36-00-010-802-A | Opening of the Thrust Reverser Cowl-Doors |
| TASK 78-36-00-410-802-A | Closing of the Thrust Reverser Cowl-Doors |
Turbine Exhaust SystemSubtask 78-11-00-941-050-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
Subtask 78-11-00-010-050-A ** ON A/C NOT FOR ALL (1) Do the procedure to prevent engine motoring
(Ref. AMM TASK 71-00-00-860-833).
B. Get Access
(1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL and 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL and 448AR.
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 78-11-00-040-050-A ** ON A/C NOT FOR ALL (1) Open the fan cowl doors (Ref. AMM TASK 71-13-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL and 438AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL and 448AR.
(2) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 78-11-00-010-051-A ** ON A/C NOT FOR ALL WARNING:
YOU MUST DEACTIVATE THE THRUST REVERSER BEFORE YOU DO WORK ON OR AROUND IT. IF YOU DO NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE AN INJURY AND/OR DAMAGE.
(1) Do the deactivation of the thrust reverser system for maintenance (Ref. AMM TASK 78-30-00-040-805).D. Get Access
(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL and 452AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL and 462AR.
(2) On the pylon, remove the Rear Mount Fairing (RMF) doors (Ref. AMM TASK 54-57-22-000-810):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
473AL and 473AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
483AL and 483AR.
4. Procedure(1) Open the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-010-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL and 452AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL and 462AR.
(2) On the pylon, remove the Rear Mount Fairing (RMF) doors (Ref. AMM TASK 54-57-22-000-810):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
473AL and 473AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
483AL and 483AR.
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-11-00-210-050-A ** ON A/C NOT FOR ALL A. General Visual Inspection of the Turbine Exhaust System
(1) Do not discard a part until you are sure there are no repairs available. If you reject a part and no repair is available, contact Collins Aerospace for disposition.
(2) Visually examine the exhaust nozzle assembly as follows:
(a) Examine the surfaces of exhaust nozzle assembly. Look for dents, wear, scratches, cracks, gouges, holes (other than the drain holes), damaged or missing hardware and other damage:
1 If you find damage, refer to the Structural Repair Manual (SRM) for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(b) Examine the drain hole on the exhaust nozzle assembly. Make sure that there is no blockage:
1 If you find blockage, remove the blockage.
(c) Examine the attachment bolts, washers and nuts on the exhaust nozzle assembly. Look for corrosion, wear, cracks, gouges, missing heads and missing parts. Also look for missing, stripped or crossed threads:
1 If you find damage, replace the damaged or missing part (Ref. AMM TASK 78-11-01-000-801) and (Ref. AMM TASK 78-11-01-400-801).
(d) Examine the alignment pins, washers and nuts on the exhaust nozzle assembly. Look for corrosion, wear, cracks, gouges, missing heads and missing parts. Also look for missing, stripped or crossed threads:
1 If you find damage, replace the damaged or missing part (Ref. AMM TASK 78-11-01-000-803) and (Ref. AMM TASK 78-11-01-400-803).
(e) Examine the snubber bracket assemblies and their related attaching hardware on the exhaust nozzle assembly. Look for dents, wear, scratches, cracks, gouges and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(f) Examine the cross flow blockers and their related attaching hardware on the exhaust nozzle assembly. Look for dents, wear, scratches, cracks, gouges and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(g) Examine the exhaust fire seal assembly and their related attaching hardware on the exhaust nozzle assembly. Look for missing segments, cracks, gouges, missing hardware, holes and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures, replace the damaged part or contact Collins Aerospace for disposition (Ref. AMM TASK 78-11-01-000-802) and (Ref. AMM TASK 78-11-01-400-802).
(3) Visually examine the forward centerbody assembly as follows:
(a) Examine the surfaces of forward centerbody assembly. Look for dents, wear, scratches, cracks, gouges, holes and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(4) Visually examine the aft centerbody assembly as follows:
(a) Examine the surfaces of aft centerbody assembly. Look for dents, wear, scratches, cracks, gouges, holes and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(b) Examine the attaching bolts on the aft centerbody assembly. Look for corrosion, wear, cracks, gouges, missing heads and missing parts. Also look for missing, stripped or crossed threads:
1 If you find damage, replace the damaged or missing part (Ref. AMM TASK 78-11-03-000-801) and (Ref. AMM TASK 78-11-03-400-801).
5. Close-up(1) Do not discard a part until you are sure there are no repairs available. If you reject a part and no repair is available, contact Collins Aerospace for disposition.
(2) Visually examine the exhaust nozzle assembly as follows:
(a) Examine the surfaces of exhaust nozzle assembly. Look for dents, wear, scratches, cracks, gouges, holes (other than the drain holes), damaged or missing hardware and other damage:
1 If you find damage, refer to the Structural Repair Manual (SRM) for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(b) Examine the drain hole on the exhaust nozzle assembly. Make sure that there is no blockage:
1 If you find blockage, remove the blockage.
(c) Examine the attachment bolts, washers and nuts on the exhaust nozzle assembly. Look for corrosion, wear, cracks, gouges, missing heads and missing parts. Also look for missing, stripped or crossed threads:
1 If you find damage, replace the damaged or missing part (Ref. AMM TASK 78-11-01-000-801) and (Ref. AMM TASK 78-11-01-400-801).
(d) Examine the alignment pins, washers and nuts on the exhaust nozzle assembly. Look for corrosion, wear, cracks, gouges, missing heads and missing parts. Also look for missing, stripped or crossed threads:
1 If you find damage, replace the damaged or missing part (Ref. AMM TASK 78-11-01-000-803) and (Ref. AMM TASK 78-11-01-400-803).
(e) Examine the snubber bracket assemblies and their related attaching hardware on the exhaust nozzle assembly. Look for dents, wear, scratches, cracks, gouges and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(f) Examine the cross flow blockers and their related attaching hardware on the exhaust nozzle assembly. Look for dents, wear, scratches, cracks, gouges and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(g) Examine the exhaust fire seal assembly and their related attaching hardware on the exhaust nozzle assembly. Look for missing segments, cracks, gouges, missing hardware, holes and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures, replace the damaged part or contact Collins Aerospace for disposition (Ref. AMM TASK 78-11-01-000-802) and (Ref. AMM TASK 78-11-01-400-802).
(3) Visually examine the forward centerbody assembly as follows:
(a) Examine the surfaces of forward centerbody assembly. Look for dents, wear, scratches, cracks, gouges, holes and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(4) Visually examine the aft centerbody assembly as follows:
(a) Examine the surfaces of aft centerbody assembly. Look for dents, wear, scratches, cracks, gouges, holes and other damage:
1 If you find damage, refer to the SRM for allowable damage limits and repair procedures or contact Collins Aerospace for disposition.
(b) Examine the attaching bolts on the aft centerbody assembly. Look for corrosion, wear, cracks, gouges, missing heads and missing parts. Also look for missing, stripped or crossed threads:
1 If you find damage, replace the damaged or missing part (Ref. AMM TASK 78-11-03-000-801) and (Ref. AMM TASK 78-11-03-400-801).
Subtask 78-11-00-410-050-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) On the pylon, install the Rear Mount Fairing (RMF) doors (Ref. AMM TASK 54-57-22-400-810):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
473AL and 473AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
483AL and 483AR.
(3) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL and 452AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL and 462AR.
Subtask 78-11-00-440-050-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) On the pylon, install the Rear Mount Fairing (RMF) doors (Ref. AMM TASK 54-57-22-400-810):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
473AL and 473AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
483AL and 483AR.
(3) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL and 452AR.
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL and 462AR.
B. Reactivation of the Thrust Reverser after Maintenance
(1) Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-11-00-410-051-A ** ON A/C NOT FOR ALL (1) Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).