W DOC AIRBUS | AMM A320F

Removal of the Overpressure Protector

TASK 28-12-41-000-003-A
Removal of the Overpressure Protector

WARNING: PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU START A TASK ON OR NEAR:
  • THE FLIGHT CONTROLS
  • THE FLIGHT CONTROL SURFACES
  • THE LANDING GEAR AND THE RELATED DOORS
  • COMPONENTS THAT MOVE.
MOVEMENT OF COMPONENTS CAN KILL OR CAUSE INJURY TO PERSONS AND/OR CAN CAUSE DAMAGE TO THE EQUIPMENT.
ZONE: 141
ZONE: 142
ZONE: 540
FIN: 96QM
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
ACCESS PLATFORM 2M (6 FT)
No specific
1
ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE
No specific
AR
ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE
No specific
AR
SAFETY BARRIER(S)
98D57004014000
1
HOOK-COVER (RIB2-SURGE DOORS)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
141
WING CENTER BOX
142
WING CENTER BOX
540
FUEL TANK
540AB, 540BZ
147AZ
148AZ
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 28-10-00-910-001-A
Safety Procedures When You Do Work in a Fuel Tank
TASK 28-10-00-910-002-A
Access to the Fuel Tanks and the Work Areas
TASK 28-25-00-650-001-A
Pressure Defuel
TASK 28-25-00-650-003-A
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 28-25-00-650-003-A-01
To Drain Remaining Fuel from the Wing Tanks and the Center Tank
TASK 32-12-00-010-001-A
Open the Main Gear Doors for Access
TASK 57-17-11-000-001-A
Removal of Access Cover 147AZ(148AZ)
TASK 57-17-11-000-001-B
Removal of Access Cover 148AZ or/and the ACT-Equipment Support Door
TASK 57-27-11-000-001-A
Removal of the Access Panel
TASK 57-27-12-000-002-A
Removal of the Rib 2 Access Panel 540AZ(640AZ) or 540BZ(640BZ)
F Overpressure Protector - Center Tank ** ON A/C NOT FOR ALL
F Overpressure Protector - Center Tank ** ON A/C NOT FOR ALL
3. Job Set-up
Subtask 28-12-41-941-055-A
A. Safety Precautions
WARNING: BEFORE YOU DO WORK IN OR NEAR A FUEL TANK, MAKE SURE THAT YOU OBEY ALL THE SAFETY PROCEDURES. THIS WILL PREVENT INJURY TO PERSONS AND/OR DAMAGE TO THE AIRCRAFT.
   (1) You must obey the fuel safety procedures when you do work in a fuel tank (Ref. AMM TASK 28-10-00-910-001).
   (2) Put the SAFETY BARRIER(S) in position.
Subtask 28-12-41-860-053-A
B. Aircraft Maintenance Configuration
   (1) Defuel the applicable fuel tanks (Ref. AMM TASK 28-25-00-650-001).
   (2) Drain the remaining fuel from the applicable fuel tanks (Ref. AMM TASK 28-25-00-650-003).
Subtask 28-12-41-010-056-A ** ON A/C NOT FOR ALL
C. Get Access
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.
   (1) Open the LH MLG door (Ref. AMM TASK 32-12-00-010-001).
   (2) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the LH MLG door actuator.
   (3) Put the ACCESS PLATFORM 2M (6 FT) in position below zone 147.
   (4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the zone 540.
   (5) Remove the access panel 147AZ, (Ref. AMM TASK 57-17-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
   (6) Remove the wing access panel 540AB, (Ref. AMM TASK 57-27-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
   (7) Open the surge door 540BZ, to get access to the bolts (1) of the overpressure protector (4).
   (8) Install the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) to hold the surge door open.
Subtask 28-12-41-010-056-C ** ON A/C NOT FOR ALL
C. Get Access
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.
   (1) Open the LH MLG door (Ref. AMM TASK 32-12-00-010-001).
   (2) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the LH MLG door actuator.
   (3) Put the ACCESS PLATFORM 2M (6 FT) in position below zone 147.
   (4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the zone 540.
   (5) Remove the ACT-Equipment Support Door or the access cover 148AZ (Ref. AMM TASK 57-17-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
   (6) Remove the wing access panel 540AB, (Ref. AMM TASK 57-27-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
   (7) Open the surge door 540BZ, to get access to the bolts (1) of the overpressure protector (4).
   (8) Install the 98D57004014000 HOOK-COVER (RIB2-SURGE DOORS) to hold the surge door open.
Subtask 28-12-41-010-056-D ** ON A/C NOT FOR ALL
C. Get Access
WARNING: MAKE SURE THAT THE TRAVEL RANGES OF THE LANDING GEAR DOORS ARE CLEAR.
   (1) Remove the left Main Landing Gear (MLG) door (Ref. AMM TASK 32-12-00-010-001).
   (2) Make sure that the 460005835 SLEEVE - GROUND LOCK is installed on the left MLG-door actuator.
   (3) Put the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the zone 147.
   (4) Put the ACCESS PLATFORM 3M (10 FT)- ADJUSTABLE in position below the zone 540.
   (5) Remove access cover 147AZ (Ref. AMM TASK 57-17-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
   (6) Remove access panel 540AB (Ref. AMM TASK 57-27-11-000-001) and (Ref. AMM TASK 28-10-00-910-002).
   (7) To get access to the bolts (1) of the overpressure protector (4):
     (a) Remove RIB2 access panel 540BZ (Ref. AMM TASK 57-27-12-000-002).
4. Procedure
Subtask 28-12-41-020-052-A
A. Removal of the Overpressure Protector 96QM.
   (1) Remove the bolts (1).
   (2) Remove the overpressure protector (4).
   (3) Remove and discard the O-ring (3).
[Rev.10 from 2021] 2026.04.02 06:17:09 UTC
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