DOC AIRBUS | AMM A320FRemoval of the Pressure Relief Doors
TASK 54-52-11-000-001-A
Removal of the Pressure Relief Doors
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 54-52-11-941-050-A ** ON A/C NOT FOR ALL
Subtask 54-52-11-020-050-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 03:50:54 UTC
Removal of the Pressure Relief Doors
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.
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | AR | WARNING NOTICE(S) |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 410 | ENG 1 PYLON BOX AND FORWARD FAIRING |
| 420 | ENG 2 PYLON BOX AND FORWARD FAIRING |
| 413DT, 423DT | |
| 413DL, 423DL |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 78-30-00-040-012-A | Deactivation of the Thrust Reverser Hydraulic Control Unit (HCU) for 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 |
Subtask 54-52-11-941-050-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 to tell persons not to energize the FADEC 1(2).
Subtask 54-52-11-040-051-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 to tell persons not to energize the FADEC 1(2).
B. Aircraft Maintenance Configuration
(1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).
Subtask 54-52-11-040-051-B ** ON A/C NOT FOR ALL (1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-481-041).
B. Aircraft Maintenance Configuration
(1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-040-012).
Subtask 54-52-11-010-050-A ** ON A/C NOT FOR ALL (1) Make the thrust reverser unserviceable (Ref. AMM TASK 78-30-00-040-012).
C. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position:
(a) in zone 410 for the left pylon,
(b) in zone 420 for the right pylon.
(2) Remove these access doors :
(a) For the left pylon: 413DL.
(b) For the right pylon: 423DL.
Subtask 54-52-11-010-050-B ** ON A/C NOT FOR ALL (1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position:
(a) in zone 410 for the left pylon,
(b) in zone 420 for the right pylon.
(2) Remove these access doors :
(a) For the left pylon: 413DL.
(b) For the right pylon: 423DL.
C. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position:
(a) in zone 410 for the left pylon,
(b) in zone 420 for the right pylon.
(2) Remove these access doors :
(a) For the left pylon: 413DT.
(b) For the right pylon: 423DT.
4. Procedure(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position:
(a) in zone 410 for the left pylon,
(b) in zone 420 for the right pylon.
(2) Remove these access doors :
(a) For the left pylon: 413DT.
(b) For the right pylon: 423DT.
Subtask 54-52-11-020-050-A ** ON A/C NOT FOR ALL
A. Removal of the Pressure Relief Door
Pressure Relief Doors ** ON A/C NOT FOR ALL
Pressure Relief Doors ** ON A/C NOT FOR ALL
Pressure Relief Doors ** ON A/C NOT FOR ALL
(1) Open the pressure relief doors (1) and (2).
(2) Remove the spring (11).
(3) Remove the cotter pins (9) and discard them.
(4) Remove the washers (6), the pin (10) and the shims (7) and (8).
(5) Remove the nut (5), the bolt (12) and the washer (13).
(6) Remove the shims (14), (15), (3) and (4).
(7) Remove the nut (21), the bolt (17) and the washers (16) and (18).
(8) Remove the shims (19) and (20).
(9) Remove the pressure relief doors (1) and (2).
Subtask 54-52-11-020-051-A ** ON A/C NOT FOR ALL Pressure Relief Doors ** ON A/C NOT FOR ALL Pressure Relief Doors ** ON A/C NOT FOR ALL Pressure Relief Doors ** ON A/C NOT FOR ALL (2) Remove the spring (11).
(3) Remove the cotter pins (9) and discard them.
(4) Remove the washers (6), the pin (10) and the shims (7) and (8).
(5) Remove the nut (5), the bolt (12) and the washer (13).
(6) Remove the shims (14), (15), (3) and (4).
(7) Remove the nut (21), the bolt (17) and the washers (16) and (18).
(8) Remove the shims (19) and (20).
(9) Remove the pressure relief doors (1) and (2).
B. Removal of the Arch Assembly
Top Arch of the Pressure Relief Doors ** ON A/C NOT FOR ALL
Top Arch of the Pressure Relief Doors ** ON A/C NOT FOR ALL
Top Arch of the Pressure Relief Doors ** ON A/C NOT FOR ALL
(1) Remove the screw (34).
(2) Remove the nut (37), the bolt (35) the washer (36) and the spacer (38).
(3) Remove the nuts (33), the bolts (31) and the spacers (32).
(4) Remove the arch assembly (39).
Top Arch of the Pressure Relief Doors ** ON A/C NOT FOR ALL Top Arch of the Pressure Relief Doors ** ON A/C NOT FOR ALL Top Arch of the Pressure Relief Doors ** ON A/C NOT FOR ALL (2) Remove the nut (37), the bolt (35) the washer (36) and the spacer (38).
(3) Remove the nuts (33), the bolts (31) and the spacers (32).
(4) Remove the arch assembly (39).