General Visual Inspection (GVI) of the Thrust Reverser Hinge Fittings and Surrounding Structure (150 mm Around Hinge Fittings) [PW11]
TASK 78-32-00-210-812-A
General Visual Inspection (GVI) of the Thrust Reverser Hinge Fittings and Surrounding Structure (150 mm Around Hinge Fittings)
Refer to the MPD TASK: 783211-02
GENERAL VISUAL INSPECTION OF THRUST REVERSER, HINGE FITTINGS AND SURROUNDING STRUCTURE (150MM AROUND HINGE FITTINGS).
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 78-32-00-941-091-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-410-110-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:32:15 UTC
General Visual Inspection (GVI) of the Thrust Reverser Hinge Fittings and Surrounding Structure (150 mm Around Hinge Fittings)
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.
1. Reason for the JobRefer to the MPD TASK: 783211-02
GENERAL VISUAL INSPECTION OF THRUST REVERSER, HINGE FITTINGS AND SURROUNDING STRUCTURE (150MM AROUND HINGE FITTINGS).
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 |
|---|---|
| FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1) | |
| 437AL, 438AR | |
| FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2) | |
| 447AL, 448AR | |
| 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 78-30-05-000-801-A | Removal of the Thrust Reverser Floating hinges |
| TASK 78-30-05-400-801-A | Installation of the Thrust Reverser Floating hinges |
| TASK 78-30-06-000-801-A | Removal of the Thrust Reverser Hinge Access Panels |
| TASK 78-30-06-400-801-A | Installation of the Thrust Reverser Hinge Access Panels |
| TASK 78-32-01-000-802-A | Removal of the Left Thrust Reverser Half - Engine 1 |
| TASK 78-32-01-000-803-A | Removal of the Left Thrust Reverser Half - Engine 2 |
| TASK 78-32-01-400-802-A | Installation of the Left Thrust Reverser Half - Engine 1 |
| TASK 78-32-01-400-803-A | Installation of the Left Thrust Reverser Half - Engine 2 |
| TASK 78-32-02-000-802-A | Removal of the Right Thrust Reverser Half - Engine 1 |
| TASK 78-32-02-000-803-A | Removal of the Right Thrust Reverser Half - Engine 2 |
| TASK 78-32-02-400-802-A | Installation of the Right Thrust Reverser Half - Engine 1 |
| TASK 78-32-02-400-803-A | Installation of the Right Thrust Reverser Half - Engine 2 |
Subtask 78-32-00-941-091-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 78-32-00-010-114-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
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
Subtask 78-32-00-040-084-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
(2) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.
C. Deactivation of the Thrust Reverser for Maintenance
Subtask 78-32-00-010-115-A ** ON A/C NOT FOR ALL 4. ProcedureWARNING:
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). CAUTION:
WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.
Subtask 78-32-00-210-085-A ** ON A/C NOT FOR ALL A. GVI of the Thrust Reverser Hinges and Surrounding Structure.
(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) Examine the hinge bolts, washers and nuts on the thrust reverser hinges on the left and right thrust reverser halves.
(a) Look for cracks, scratches, gouges, dents and other damage.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-01-000-802) and (Ref. AMM TASK 78-32-01-400-802), (Ref. AMM TASK 78-32-01-000-803) and (Ref. AMM TASK 78-32-01-400-803), (Ref. AMM TASK 78-32-02-000-802) and (Ref. AMM TASK 78-32-02-400-802), (Ref. AMM TASK 78-32-02-000-803) and (Ref. AMM TASK 78-32-02-400-803).
(3) Examine the floating hinges and the bearings on the floating hinges at the R1 and R2 hinge positions.
(a) Look for cracks, scratches, gouges, dents and other damage.
(b) If you find damage, replace the part (Ref. AMM TASK 78-30-05-000-801) and (Ref. AMM TASK 78-30-05-400-801) or contact UTAS for disposition.
(4) Examine the thrust reverser hinges, bushings on the thrust reverser hinges at the R3 and R4 positions and 5.9 in. (149.86 mm) of the adjacent structure from the edges of all hinges.
(a) Look for cracks, scratches, gouges, dents and other damage.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
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 United Technologies Aerospace Systems (UTAS) for disposition.
(2) Examine the hinge bolts, washers and nuts on the thrust reverser hinges on the left and right thrust reverser halves.
(a) Look for cracks, scratches, gouges, dents and other damage.
(b) If you find damage, replace the part (Ref. AMM TASK 78-32-01-000-802) and (Ref. AMM TASK 78-32-01-400-802), (Ref. AMM TASK 78-32-01-000-803) and (Ref. AMM TASK 78-32-01-400-803), (Ref. AMM TASK 78-32-02-000-802) and (Ref. AMM TASK 78-32-02-400-802), (Ref. AMM TASK 78-32-02-000-803) and (Ref. AMM TASK 78-32-02-400-803).
(3) Examine the floating hinges and the bearings on the floating hinges at the R1 and R2 hinge positions.
(a) Look for cracks, scratches, gouges, dents and other damage.
(b) If you find damage, replace the part (Ref. AMM TASK 78-30-05-000-801) and (Ref. AMM TASK 78-30-05-400-801) or contact UTAS for disposition.
(4) Examine the thrust reverser hinges, bushings on the thrust reverser hinges at the R3 and R4 positions and 5.9 in. (149.86 mm) of the adjacent structure from the edges of all hinges.
(a) Look for cracks, scratches, gouges, dents and other damage.
(b) If you find damage, refer to the Structural Repair Manual for allowable damage limits and repair procedures or contact UTAS for disposition.
Subtask 78-32-00-410-110-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) Install the hinge access panels (Ref. AMM TASK 78-30-06-400-801).
Subtask 78-32-00-440-079-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the hinge access panels (Ref. AMM TASK 78-30-06-400-801).
B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-00-410-109-A ** ON A/C NOT FOR ALL
Thrust Reverser Hinges