DOC AIRBUS | AMM A320FDetailed Visual Inspection of the Thrust Reverser, Latch Assembly on the Two Halves and Surrounding Structure (150 mm Around Latches) [PW11]
TASK 78-32-00-210-814-A
Detailed Visual Inspection of the Thrust Reverser, Latch Assembly on the Two Halves and Surrounding Structure (150 mm Around Latches)
Refer to the MPD TASK: 783212-01
DETAILED INSPECTION OF THRUST REVERSER, LATCH ASSEMBLY ON THE TWO HALVES AND SURROUNDING STRUCTURE (150MM AROUND LATCHES).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 78-32-00-941-093-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-410-114-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:32:18 UTC
Detailed Visual Inspection of the Thrust Reverser, Latch Assembly on the Two Halves and Surrounding Structure (150 mm Around Latches)
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.
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.
1. Reason for the JobRefer to the MPD TASK: 783212-01
DETAILED INSPECTION OF THRUST REVERSER, LATCH ASSEMBLY ON THE TWO HALVES AND SURROUNDING STRUCTURE (150MM AROUND LATCHES).
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | FLASHLIGHT |
| No specific | 1 | MAGNIFYING GLASS POWER 10X |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.PU1-0001) | lint-free cotton cloth |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR, 451AL, 452AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR, 461AL, 462AR | |
| REFERENCE | DESIGNATION |
|---|---|
| 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 78-30-00-040-805-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 78-32-35-000-801-A | Removal of the Thrust Reverser Latches |
| TASK 78-32-35-400-801-A | Installation of the Thrust Reverser Latches |
| TASK 78-32-41-000-803-A | Removal of the Left Thrust Reverser Thermal Insulation Blankets |
| TASK 78-32-41-400-803-A | Installation of the Left Thrust Reverser Thermal Insulation Blankets |
| TASK 78-32-43-000-805-A | Removal of the Thrust Reverser Bifurcation Latch Receiver |
| TASK 78-32-43-400-805-A | Installation of the Thrust Reverser Bifurcation Latch Receiver |
| TASK 78-32-71-000-802-A | Removal of the Right Thrust Reverser Thermal Insulation Blankets |
| TASK 78-32-73-000-801-A | Removal of the Thrust Reverser Bifurcation Latch Pin |
| TASK 78-32-73-400-801-A | Installation of the Thrust Reverser Bifurcation Latch Pin |
| TASK 78-32-75-000-802-A | Removal of the Thrust Reverser Keepers |
| TASK 78-32-75-400-802-A | Installation of the Thrust Reverser Keepers |
| 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 |
| SRM 541600 | |
Thrust Reverser Latch Assemblies on the Two Halves and Surrounding StructureSubtask 78-32-00-941-093-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 78-32-00-010-119-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 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
Subtask 78-32-00-040-086-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 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 78-32-00-010-120-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 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
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 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-32-00-100-054-A ** ON A/C NOT FOR ALL A. Preparation before inspection
(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 United Technologies Aerospace Systems (UTAS) for disposition.
(2) Clean the inspection parts and surrounding areas with a lint-free cotton cloth (Material No.PU1-0001) to remove unwanted debris, dirt and grease.
Subtask 78-32-00-210-087-A ** ON A/C NOT FOR ALL (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 United Technologies Aerospace Systems (UTAS) for disposition.
(2) Clean the inspection parts and surrounding areas with a lint-free cotton cloth (Material No.PU1-0001) to remove unwanted debris, dirt and grease.
B. Detailed Visual Inspection of the Thrust Reverser Latch Assemblies and Surrounding Structure
(1) Do a detailed visual inspection of the thrust reverser latch assemblies and surrounding structure. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Remove the left aft latch beam thermal blanket to get access to the latch 2 (Ref. AMM TASK 78-32-41-000-803).
(3) Remove the left lower aft barrel thermal blanket to get access to the latch 5 (Ref. AMM TASK 78-32-41-000-803).
(4) Examine the latch 1A, latch 1B, latch 2, latch 3, latch 4 and latch 5 assemblies.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-35-000-801) and (Ref. AMM TASK 78-32-35-400-801) or contact UTAS for disposition.
(5) Examine the inner and outer failsafe pins, bolts, washers and nuts.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-35-000-801) and (Ref. AMM TASK 78-32-35-400-801).
(6) Examine 5.9 in. (150 mm) of the surrounding structure of the latch 1A, latch 1B, latch 2, latch 3, latch 4 and latch 5.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
Subtask 78-32-00-210-088-A ** ON A/C NOT FOR ALL (1) Do a detailed visual inspection of the thrust reverser latch assemblies and surrounding structure. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Remove the left aft latch beam thermal blanket to get access to the latch 2 (Ref. AMM TASK 78-32-41-000-803).
(3) Remove the left lower aft barrel thermal blanket to get access to the latch 5 (Ref. AMM TASK 78-32-41-000-803).
(4) Examine the latch 1A, latch 1B, latch 2, latch 3, latch 4 and latch 5 assemblies.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-35-000-801) and (Ref. AMM TASK 78-32-35-400-801) or contact UTAS for disposition.
(5) Examine the inner and outer failsafe pins, bolts, washers and nuts.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-35-000-801) and (Ref. AMM TASK 78-32-35-400-801).
(6) Examine 5.9 in. (150 mm) of the surrounding structure of the latch 1A, latch 1B, latch 2, latch 3, latch 4 and latch 5.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
C. Detailed Visual Inspection of the Thrust Reverser Keepers and Surrounding Structure
(1) Do a detailed visual inspection of the thrust reverser keepers and surrounding structure. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Remove the right aft latch beam thermal blanket to get access to the latch 2 keeper (Ref. AMM TASK 78-32-71-000-802).
(3) Remove the right lower aft barrel thermal blanket to get access to the latch 5 keeper (Ref. AMM TASK 78-32-71-000-802).
(4) Examine the inner and outer failsafe pins, bolts, washers, and nuts.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-75-000-802) and (Ref. AMM TASK 78-32-75-400-802).
(5) Examine 5.9 in. (150 mm) of the surrounding structure of the keepers on the latch beam.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
Subtask 78-32-00-210-089-A ** ON A/C NOT FOR ALL (1) Do a detailed visual inspection of the thrust reverser keepers and surrounding structure. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Remove the right aft latch beam thermal blanket to get access to the latch 2 keeper (Ref. AMM TASK 78-32-71-000-802).
(3) Remove the right lower aft barrel thermal blanket to get access to the latch 5 keeper (Ref. AMM TASK 78-32-71-000-802).
(4) Examine the inner and outer failsafe pins, bolts, washers, and nuts.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-75-000-802) and (Ref. AMM TASK 78-32-75-400-802).
(5) Examine 5.9 in. (150 mm) of the surrounding structure of the keepers on the latch beam.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
D. Detailed Visual Inspection of the Bifurcation Latch System (BLS) and Surrounding Structure
(1) Do a detailed visual inspection of the bifurcation latch system (BLS) and surrounding structure. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Remove the lower forward barrel thermal blanket from the left thrust reverser (Ref. AMM TASK 78-32-41-000-803).
(3) Examine the BLS receiver and BLS latch.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-43-000-805) and (Ref. AMM TASK 78-32-43-400-805) or contact UTAS for disposition.
(4) Examine 5.9 in. (150 mm) of the surrounding structure of the BLS receiver and BLS latch.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, Refer to the Structural Repair Manual SRM 541600 for disposition.
(5) Remove the right lower forward barrel thermal blanket from the right thrust reverser (Ref. AMM TASK 78-32-71-000-802).
(6) Examine the BLS pin.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-73-000-801) and (Ref. AMM TASK 78-32-73-400-801) or contact UTAS for disposition.
(7) Examine 5.9 in. (150 mm) of the surrounding structure of the BLS pin.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
Subtask 78-32-00-420-063-A ** ON A/C NOT FOR ALL (1) Do a detailed visual inspection of the bifurcation latch system (BLS) and surrounding structure. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Remove the lower forward barrel thermal blanket from the left thrust reverser (Ref. AMM TASK 78-32-41-000-803).
(3) Examine the BLS receiver and BLS latch.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-43-000-805) and (Ref. AMM TASK 78-32-43-400-805) or contact UTAS for disposition.
(4) Examine 5.9 in. (150 mm) of the surrounding structure of the BLS receiver and BLS latch.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, Refer to the Structural Repair Manual SRM 541600 for disposition.
(5) Remove the right lower forward barrel thermal blanket from the right thrust reverser (Ref. AMM TASK 78-32-71-000-802).
(6) Examine the BLS pin.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-73-000-801) and (Ref. AMM TASK 78-32-73-400-801) or contact UTAS for disposition.
(7) Examine 5.9 in. (150 mm) of the surrounding structure of the BLS pin.
(a) Look for gouges, scratches and deterioration of protection.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
E. Install the left lower aft barrel thermal blanket, lower forward barrel thermal blanket and left aft latch beam thermal blanket on the left thrust reverser (Ref. AMM TASK 78-32-41-400-803).
Subtask 78-32-00-420-064-A ** ON A/C NOT FOR ALL F. Install the right lower aft barrel thermal blanket, right lower aft barrel thermal blanket and right aft latch beam thermal blanket on the right thrust reverser (Ref. AMM TASK 78-32-41-400-803).
5. Close-upSubtask 78-32-00-410-114-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 cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
Subtask 78-32-00-440-081-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Close the thrust reverser cowl-doors (Ref. AMM TASK 78-36-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
451AL 452AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
461AL 462AR
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-00-410-115-A ** ON A/C NOT FOR ALL