DOC AIRBUS | AMM A320FDeactivation of the Pylon Lateral Access-Door (415AL, 415AR, 425AL or 425AR)
TASK 54-51-21-040-802-A
Deactivation of the Pylon Lateral Access-Door (415AL, 415AR, 425AL or 425AR)
CDL 54-04
PYLON ACCESS DOOR 415(425) AL - 415(425) AR
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 54-51-21-941-056-A ** ON A/C NOT FOR ALL
Subtask 54-51-21-040-059-A ** ON A/C NOT FOR ALL
Subtask 54-51-21-440-054-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:01:04 UTC
Deactivation of the Pylon Lateral Access-Door (415AL, 415AR, 425AL or 425AR)
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:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
WARNING:
PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
1. Reason for the Job- THE FLIGHT CONTROLS
- THE FLIGHT CONTROL SURFACES
- THE LANDING GEAR AND THE RELATED DOORS
- COMPONENTS THAT MOVE.
CDL 54-04
PYLON ACCESS DOOR 415(425) AL - 415(425) AR
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) |
| No specific | AR | WARNING NOTICE(S) |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.05RAB9) | Adhesive Film Tape-- Aluminium Foil - |
| (Material No.08BPA1) | Non Aqueous Cleaner-Non structural use - - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 410 | ENG 1 PYLON BOX AND FORWARD FAIRING |
| 420 | ENG 2 PYLON BOX AND FORWARD FAIRING |
| 415AL, 415AR, 425AL, 425AR |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 54-51-21-000-001-A | Removal of the Pylon Lateral Access-Doors |
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for Ground Maintenance |
| TASK 78-30-00-081-041-A | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-081-041-B | Make the Thrust Reverser Serviceable after Maintenance |
| TASK 78-30-00-440-012-A | Re-activation of the Thrust Reverser Hydraulic Control Unit (HCU) after Ground Maintenance |
| TASK 78-30-00-481-041-A | Make the Thrust Reverser Unserviceable for Maintenance |
| TASK 78-30-00-481-041-B | Make the Thrust Reverser Unserviceable for Maintenance |
| SRM 517712 | |
Deactivation of the Pylon Lateral Access-DoorsSubtask 54-51-21-941-056-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Put the WARNING NOTICE(S) in position to tell persons not to start engine 1(2).
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On 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 the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 54-51-21-040-058-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on ENG panel 115VU:
(a) Put the WARNING NOTICE(S) in position to tell persons not to start engine 1(2).
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On 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 the WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
B. Deactivation of the Thrust Reverser
Subtask 54-51-21-040-058-B ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.
(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-481-041). B. Deactivation of the Thrust Reverser
Subtask 54-51-21-010-055-A ** ON A/C NOT FOR ALL WARNING:
MAKE SURE THAT THE THRUST REVERSER IS LOCKED. IF NOT, THE THRUST REVERSER CAN OPERATE ACCIDENTALLY AND CAUSE INJURY TO PERSONNEL AND/OR DAMAGE TO THE REVERSER.
(1) Make the thrust reverser unserviceable for maintenance (Ref. AMM TASK 78-30-00-040-012).C. Get Access
(1) Put the ACCESS PLATFORM 2M (6 FT) in position:
(a) For the left pylon, at zone 410
(b) For the right pylon, at zone 420.
4. Procedure(1) Put the ACCESS PLATFORM 2M (6 FT) in position:
(a) For the left pylon, at zone 410
(b) For the right pylon, at zone 420.
Subtask 54-51-21-040-059-A ** ON A/C NOT FOR ALL
A. Deactivation of the Pylon Lateral Access-Door (415AL, 415AR, 425AL or 425AR)
(1) Remove damaged access door 415AL, 415AR, 425AL or 425AR (Ref. AMM TASK 54-51-21-000-001).
(2) Clean the component interfaces and the adjacent area.
(3) Clean the fuselage around the cutout of the removed access door(s) with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) .
(4) Apply three layers of Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) to fully close the cutout of each removed access door as follows:
(a) Apply the first layer of high-speed tape longitudinally on the access door cutout.
(b) Apply the second layer of high-speed tape diagonally to make an overlap with the first layer.
(c) Apply the third layer of high-speed tape diagonally but in the opposite direction to the second layer.
(d) Make sure that there is no damage or contamination before each flight.
(5) Replace the high-speed tape at intervals of five flight cycles.
(6) If you did not do the reactivation of the access door in seven days, do the inspection for the integrity of the high-speed tape SRM 517712.
5. Close-up(1) Remove damaged access door 415AL, 415AR, 425AL or 425AR (Ref. AMM TASK 54-51-21-000-001).
(2) Clean the component interfaces and the adjacent area.
(3) Clean the fuselage around the cutout of the removed access door(s) with Non Aqueous Cleaner-Non structural use - - (Material No.08BPA1) .
(4) Apply three layers of Adhesive Film Tape-- Aluminium Foil - (Material No.05RAB9) to fully close the cutout of each removed access door as follows:
(a) Apply the first layer of high-speed tape longitudinally on the access door cutout.
(b) Apply the second layer of high-speed tape diagonally to make an overlap with the first layer.
(c) Apply the third layer of high-speed tape diagonally but in the opposite direction to the second layer.
(d) Make sure that there is no damage or contamination before each flight.
(5) Replace the high-speed tape at intervals of five flight cycles.
(6) If you did not do the reactivation of the access door in seven days, do the inspection for the integrity of the high-speed tape SRM 517712.
Subtask 54-51-21-440-054-A ** ON A/C NOT FOR ALL
A. Reactivation of the Thrust Reverser
(1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
Subtask 54-51-21-440-054-B ** ON A/C NOT FOR ALL (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-081-041).
A. Reactivation of the Thrust Reverser
(1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-012).
Subtask 54-51-21-410-055-A ** ON A/C NOT FOR ALL (1) Make the thrust reverser serviceable after maintenance (Ref. AMM TASK 78-30-00-440-012).
B. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Make an entry in the logbook.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
(3) Remove the WARNING NOTICE(S).
(4) Make an entry in the logbook.