General Visual Inspection (GVI) of the Thrust Reverser Blocker Door Drag Links [PW11]

TASK 78-32-00-210-806-A
General Visual Inspection (GVI) of the Thrust Reverser Blocker Door Drag Links

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.

WARNING: BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.

1. Reason for the Job
Self 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

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.PU1-0001)	lint-free cotton cloth
(Material No.PU2-0001)	alcohol, isopropyl

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL, 438AR
FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL, 448AR

D. Referenced Information

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
TASK 78-32-32-000-801-A	Removal of the Thrust Reverser Blocker Door Drag Links
TASK 78-32-32-400-801-A	Installation of the Thrust Reverser Blocker Door Drag Links
Thrust Reverser Blocker Door Drag Links PRE SB GRAA320NEO-A-78-30 -0012-00001-930A-D
Thrust Reverser Blocker Door Drag Links POST SB GRAA320NEO-A-78-30 -0012-00001-930A-D

3. Job Set-up
Subtask 78-32-00-941-084-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 78-32-00-010-101-A ** ON A/C NOT FOR ALL

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 78-32-00-040-077-A ** ON A/C NOT FOR ALL

C. Deactivation of the Thrust Reverser for Maintenance

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).

Subtask 78-32-00-010-104-A ** ON A/C NOT FOR ALL

D. Manually extend the thrust-reverser translating sleeves sufficiently to gain access to the drag links (Ref. AMM TASK 78-32-00-860-802).
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position.

4. Procedure

CAUTION: WIPE CLEAN ALL PARTS AND TOOLS AS NECESSARY TO REMOVE UNWANTED DEBRIS AND PREVENT DAMAGE TO THE ENGINE.

Subtask 78-32-00-210-075-A ** ON A/C NOT FOR ALL

A. General Visual Inspection (GVI) of the Thrust Reverser Blocker Door Drag Links
(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 surfaces of the drag links and attaching hardware with a clean lint-free cotton cloth (Material No.PU1-0001) and PU2-0001alcohol, isopropyl. Remove the alcohol with a clean lint-free cotton cloth (Material No.PU1-0001) before the alcohol becomes dry.
(3) Examine the blocker door drag links.
(a) Look for cracks, holes, punctures, gouges, corrosion and other damage.
(b) If you find damage, replace the damaged part (Ref. AMM TASK 78-32-32-000-801) and (Ref. AMM TASK 78-32-32-400-801) or contact UTAS for disposition.
(4) Examine the T-bolt and cap on the drag link fitting on the inner fixed structure. Examine the bolt, washers and nut on the blocker door end of the drag link.
(a) Look for cracks, gouges, wear, corrosion, missing parts or other damage.
(b) If you find damage, replace the damaged or missing part (Ref. AMM TASK 78-32-32-000-801) and (Ref. AMM TASK 78-32-32-400-801).
(5) Examine the bearings on the drag links.
(a) Look for dents, wear, corrosion, scratches, cracks, gouges, liner migration or other damage.
(b) If you find damage, replace the drag link (Ref. AMM TASK 78-32-32-000-801) and (Ref. AMM TASK 78-32-32-400-801) or contact UTAS for disposition.

5. Close-up
Subtask 78-32-00-410-099-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 78-32-00-440-072-A ** ON A/C NOT FOR ALL

B. Do the reactivation of the thrust reverser system after maintenance (Ref. AMM TASK 78-30-00-440-805).

Subtask 78-32-00-410-096-A ** ON A/C NOT FOR ALL

C. Close Access
(1) Close the fan cowl doors (Ref. AMM TASK 71-13-00-410-802):
(a) FOR [4020KM1] (POWER PLANT-DEMOUNTABLE, ENG 1)
437AL 438AR
(b) FOR [4020KM2] (POWER PLANT-DEMOUNTABLE, ENG 2)
447AL 448AR
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).

[Rev.10 from 2021] 2026.04.01 03:32:09 UTC