DOC AIRBUS | AMM A320FDetailed Visual Inspection of Thrust Reverser Cascade Ring to Beam Connections [PW11]
TASK 78-32-00-210-818-A
Detailed Visual Inspection of Thrust Reverser Cascade Ring to Beam Connections
Refer to the MPD TASK: 783215-01
DETAILED INSPECTION OF THRUST REVERSER, CASCADE RING TO BEAM CONNECTIONS.
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 78-32-00-941-095-A ** ON A/C NOT FOR ALL
Subtask 78-32-00-410-118-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:32:20 UTC
Detailed Visual Inspection of Thrust Reverser Cascade Ring to Beam Connections
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: 783215-01
DETAILED INSPECTION OF THRUST REVERSER, CASCADE RING TO BEAM CONNECTIONS.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| 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 | |
| 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 78-32-00-860-802-A | Manual Extension of the Thrust-Reverser Translating Sleeves |
| TASK 78-32-00-860-803-A | Manual Retraction of the Thrust-Reverser Translating Sleeves |
Thrust Reverser Cascade Ring to Beam ConnectionsSubtask 78-32-00-941-095-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 78-32-00-010-123-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 78-32-00-040-088-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 78-32-00-010-124-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 78-32-00-100-056-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 areas with a lint-free cotton cloth (Material No.PU1-0001) to remove unwanted debris, dirt and grease.
Subtask 78-32-00-210-091-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 areas with a lint-free cotton cloth (Material No.PU1-0001) to remove unwanted debris, dirt and grease.
B. Detailed Visual Inspection of the Cascade Ring and Hinge Beam Connection
(1) Do a detailed visual inspection of the cascade ring and hinge beam connection. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Examine the cascade ring assembly and the bolt, washer and nut that attach the cascade ring assembly to the hinge beam.
(a) Look for corrosion, security of attachment 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 78-32-00-210-092-A ** ON A/C NOT FOR ALL (1) Do a detailed visual inspection of the cascade ring and hinge beam connection. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Examine the cascade ring assembly and the bolt, washer and nut that attach the cascade ring assembly to the hinge beam.
(a) Look for corrosion, security of attachment 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.
C. Detailed Visual Inspection of the Cascade Ring and Latch Beam Connection
(1) Do a detailed visual inspection of the cascade ring and latch beam connection. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Examine the cascade ring assembly, cascade ring fitting and the bolt, washer and nut that attach the cascade ring assembly to the latch beam.
(a) Look for corrosion, security of attachment 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 a detailed visual inspection of the cascade ring and latch beam connection. Use the inspection FLASHLIGHT and MAGNIFYING GLASS POWER 10X.
(2) Examine the cascade ring assembly, cascade ring fitting and the bolt, washer and nut that attach the cascade ring assembly to the latch beam.
(a) Look for corrosion, security of attachment 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 78-32-00-410-118-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) Manually retract the thrust reverser translating sleeves (Ref. AMM TASK 78-32-00-860-803).
Subtask 78-32-00-440-083-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Manually retract the thrust reverser translating sleeves (Ref. AMM TASK 78-32-00-860-803).
B. Reactivation of the Thrust Reverser System
(1) Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).
Subtask 78-32-00-410-119-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).