DOC AIRBUS | AMM A320FRemoval of the Left Thrust Reverser Blocker Door Drag Links [IAE]
TASK 78-32-42-000-010-A
Removal of the Left Thrust Reverser Blocker Door Drag Links
1. Reason for the Job
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 78-32-42-941-053-A ** ON A/C NOT FOR ALL
Subtask 78-32-42-020-054-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:28:24 UTC
Removal of the Left Thrust Reverser Blocker Door Drag Links
1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| FOR [1000EM1] (ENGINE-1) | |
| 437AL, 438AR, 451AL | |
| FOR [1000EM2] (ENGINE-2) | |
| 447AL, 448AR, 461AL | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 71-13-00-010-010-A | Opening of the Fan Cowls 437AL(447AL),438AR(448AR) |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-32-00-010-010-A | Opening of the Thrust Reverser Halves |
| TASK 78-32-00-860-010-A | Manual Extension of the Thrust Reverser Translating Sleeves |
Left and Right Thrust-Reverser Blocker-Door Drag-LinksSubtask 78-32-42-941-053-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
Subtask 78-32-42-010-057-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on the ENG panel 115VU:
(a) Put a WARNING NOTICE(S) to tell persons not to start the engine.
(2) Make sure that the engine 1(2) shutdown occurred not less than 5 minutes before you do this procedure.
(3) On the overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) to tell persons not to energize the FADEC 1(2).
B. Open the fan cowls (Ref. AMM TASK 71-13-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
Subtask 78-32-42-040-055-A ** ON A/C NOT FOR ALL (1) FOR [1000EM1] (ENGINE-1)
437AL 438AR.
(2) FOR [1000EM2] (ENGINE-2)
447AL 448AR.
C. Deactivate the thrust reverser.
Subtask 78-32-42-980-050-A ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT THE THRUST REVERSER HYDRAULIC CONTROL UNIT (HCU) IS DEACTIVATED BEFORE YOU DO WORK ON OR AROUND THE THRUST REVERSER. IF THE HCU IS NOT DEACTIVATED, THERE IS A RISK OF UNWANTED THRUST REVERSER OPERATION WHICH CAN CAUSE INJURY TO PERSONS AND/OR DAMAGE TO EQUIPMENT.
(1) Deactivate the thrust reverser hydraulic control unit (HCU) (Ref. AMM TASK 78-30-00-040-012). D. Manual extension of the translating sleeve
Subtask 78-32-42-010-058-A ** ON A/C NOT FOR ALL CAUTION:
DO NOT EXTEND THE THRUST REVERSER TRANSLATING SLEEVE WITH THE THRUST REVERSER HALVES FULLY OPEN. IF YOU DO NOT OBEY THIS INSTRUCTION, DAMAGE CAN OCCUR TO:
- THE SYNCHRONIZING CABLES OF THE TRANSLATING SLEEVE
- THE HINGE ACCESS PANELS OF THE THRUST REVERSER HALVES
- THE PYLON PROFILES, AND
- THE TRANSLATING SLEEVE.
CAUTION:
IF YOU OPEN THE THRUST REVERSER HALVES AFTER YOU EXTENDED THE TRANSLATING SLEEVES, MAKE SURE THAT:
- THE SLATS ARE RETRACTED, AND
- YOU REMOVE THE PROFILES AND THE HINGE ACCESS PANELS.
IF YOU DO NOT OBEY THIS INSTRUCTION, YOU CAN CAUSE DAMAGE TO THE EQUIPMENT.
(1) Manually extend the translating sleeve approximately 3 in. (76.2 mm) to 4 in. (101.6 mm) to relieve the preload from the link (Ref. AMM TASK 78-32-00-860-010). E. Open the left thrust reverser half (Ref. AMM TASK 78-32-00-010-010):
(1) FOR [1000EM1] (ENGINE-1)
451AL.
(2) FOR [1000EM2] (ENGINE-2)
461AL.
4. Procedure(1) FOR [1000EM1] (ENGINE-1)
451AL.
(2) FOR [1000EM2] (ENGINE-2)
461AL.
Subtask 78-32-42-020-054-A ** ON A/C NOT FOR ALL
A. Disconnect the drag link from the fitting
PRE SBN 78-0032
(1) Remove the cotter pin (3), the nut (7), the washers (4) and the pin (5) or the bolt (8) which attach the drag link (2) to the fitting (6).
Subtask 78-32-42-020-055-A ** ON A/C NOT FOR ALL PRE SBN 78-0032
(1) Remove the cotter pin (3), the nut (7), the washers (4) and the pin (5) or the bolt (8) which attach the drag link (2) to the fitting (6).
B. Disconnect the drag link from the fitting
SBN 78-0032: Changed attachment of the drag link to the fitting.
(1) Remove the cotter pin (3), the nut (7), the washer (4)(for A1 Engines) or the washers (4)(for A5 Engines) and the bolt (8) which attach the drag link (2) to the fitting (6).
Subtask 78-32-42-020-052-A ** ON A/C NOT FOR ALL SBN 78-0032: Changed attachment of the drag link to the fitting.
(1) Remove the cotter pin (3), the nut (7), the washer (4)(for A1 Engines) or the washers (4)(for A5 Engines) and the bolt (8) which attach the drag link (2) to the fitting (6).
C. Remove the drag link
PRE SBN 78-0013
(1) Remove the nut (9), the bolt (11), and the washers (10).
(2) Remove the drag link (2) from the blocker door.
Subtask 78-32-42-020-053-A ** ON A/C NOT FOR ALL PRE SBN 78-0013
(1) Remove the nut (9), the bolt (11), and the washers (10).
(2) Remove the drag link (2) from the blocker door.
D. Remove the drag link
SBN 78-0013: Changed attachment of the drag link to the blocker door.
(1) Remove the nut (9), the bolt (11), the washers (10) and the spacers (12).
(2) Remove the drag link (2) from the blocker door.
SBN 78-0013: Changed attachment of the drag link to the blocker door.
(1) Remove the nut (9), the bolt (11), the washers (10) and the spacers (12).
(2) Remove the drag link (2) from the blocker door.