W DOC AIRBUS | AMM A320F

Operational Test of the AFT Cargo-Compartment Door


TASK 52-32-00-710-001-A
Operational Test of the AFT Cargo-Compartment Door


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)
 B. Work Zones and Access Panels
ZONE/ACCESS
ZONE DESCRIPTION
154AR
 C. Referenced Information
REFERENCE
DESIGNATION
TASK 24-41-00-861-002-A
Energize the Aircraft Electrical Circuits from the External Power
TASK 24-41-00-861-002-A-01
Energize the Aircraft Electrical Circuits from the APU
TASK 24-41-00-861-002-A-02
Energize the Aircraft Electrical Circuits from Engine 1(2)
TASK 24-41-00-862-002-A
De-energize the Aircraft Electrical Circuits Supplied from the External Power
TASK 24-41-00-862-002-A-01
De-energize the Aircraft Electrical Circuits Supplied from the APU
TASK 24-41-00-862-002-A-02
De-energize the Aircraft Electrical Circuits Supplied from the Engine 1(2)
TASK 29-14-00-614-002-A
Pressurization of the Hydraulic Reservoirs through the Ground Connector
TASK 29-14-00-614-002-A-01
Pressurization of the Hydraulic Reservoirs with the Auxiliary Power Unit (APU)
TASK 29-24-00-864-001-A
Depressurize the Yellow Hydraulic System
TASK 31-60-00-860-001-A
EIS Start Procedure
TASK 31-60-00-860-002-A
EIS Stop Procedure
TASK 52-30-00-860-002-A
Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump
3. Job Set-up
Subtask 52-32-00-010-050-A
A. Get Access
   (1) Make sure that the AFT cargo compartment door (referred to as cargo door) is closed (Ref. AMM TASK 52-30-00-860-002).
   (2) If necessary, put the ACCESS PLATFORM 2M (6 FT) in position below the closed cargo door.
   (3) Open the access panel 154AR to get access to the selector of the control panel.
Subtask 52-32-00-865-050-A
B. Make sure that this(these) circuit breaker(s) is(are) closed:
PANELDESIGNATIONFINLOCATION
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN30
** ON A/C NOT FOR ALL
121VUHYDRAULIC/HYD POWER/Y3803GXN31
** ON A/C ALL
122VUDOORS/CARGO1MJT12
123VUY HYD/ELEC/PUMP3802GXAB06
123VUY HYD/ELEC/ELEC PUMP/NORM3801GXAB03
Subtask 52-32-00-860-050-A
C. Aircraft Maintenance Configuration
   (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
   (2) Do the EIS start procedure (upper ECAM DU and lower ECAM DU only)
(Ref. AMM TASK 31-60-00-860-001).
   (3) Make sure that the Yellow hydraulic system reservoir is pressurized (Ref. AMM TASK 29-14-00-614-002).
4. Procedure
Subtask 52-32-00-710-050-C ** ON A/C NOT FOR ALL
WARNING: MAKE SURE THAT THE TRAVEL RANGE OF THE CARGO DOOR IS CLEAR BEFORE YOU UNLOCK IT. STAY AFT OF (LEFT OF) THE DOOR WHEN YOU UNLOCK IT BECAUSE IT CAN OPEN SUDDENLY AND CAUSE INJURY.
CAUTION: IMMEDIATELY AFTER YOU OPEN THE CARGO COMPARTMENT DOOR, RECORD ON THE WORK CARD ON THE DOOR, THE DATE AND TIME WHEN YOU OPENED IT. IF THE CARGO COMPARTMENT DOOR STAYS OPEN FOR 12 HOURS OR MORE, YOU MUST BLEED THE HYDRAULIC SYSTEM RELATED TO IT. IF YOU DO NOT OBEY THESE PRECAUTIONS, THE DOOR CAN CLOSE SUDDENLY WHEN YOU SET THE DOOR TO "CLOSE". THIS CAN CAUSE DAMAGE TO THE DOOR AND TO THE AIRCRAFT STRUCTURE.
A. Do this test:
ACTION
RESULT
1.On the AFT cargo door:
On the AFT cargo door:
  • push the handle flap in and pull the door handle away from the recess of the door structure.
  • the vent door opens inboard
  • the drift pins retract from the receptacles of the fuselage
  • you can see the red mark on each safety cam through the indication window.

On the lower ECAM DU:
  • the symbol of the AFT cargo door is shown in amber and the message CARGO comes on.

On the AFT cargo door:
  • move the door handle fully up to the UNLOCKED position.
  • the latching hooks disengage from the latch fittings
  • the cargo door starts to open because of the force of gravity.
2.On the control panel:
On the AFT cargo door:
  • move the selector to the OPEN position and hold it.
  • the door actuators extend and the cargo door moves in the open direction.
  • release the selector.
  • the cargo door stops and stays in this position.
  • set the selector in the OPEN position again and hold.
  • the cargo door moves in the open direction.

On the control panel:
  • the green indicator light comes on when the door actuators are extended and locked.
3.On the AFT cargo door:
On the AFT cargo door:
  • examine the cargo door during the movement.
  • the cargo door must open smoothly and easily.
4.On the control panel:
On the AFT cargo door:
  • release the selector when the green indicator light is on.
  • the cargo door stays in the fully open position.

On the control panel:
  • move the selector in the CLOSE direction and hold it.
  • the selector is not in the CLOSE position
  • the green indicator light goes off as soon as the door actuators are not in their locked position.

On the AFT cargo door:
  • set the selector to the fully CLOSE position and hold it.
  • the door actuators retract and the cargo door moves in the close direction.
  • release the selector when the cargo door is in a position in which you can do an interlock mechanism check.
  • the cargo door stops and stays in this position.
5.On the AFT cargo door:
On the AFT cargo door:
  • try to move the door handle from the UNLOCKED to the LOCKED position.
  • you cannot move the door handle because the interlock mechanism blocks the cam of the locking shaft.
  • press the roller lever of the interlock mechanism outboard.
  • the blockage of the latching shaft is released.
  • move the door handle down to the LOCKED position.
  • the latching hooks move to their locked position
  • the target lever of the switch mechanism moves inboards
  • the target of the control lever is not in line with the proximity sensor.
6.On the control panel:
On the AFT cargo door:
  • set the selector in the OPEN or CLOSE position.
  • the cargo door must stay in the same position.
7.On the AFT cargo door:
On the AFT cargo door:
  • Push the handle flap in and pull the door handle away and up to the UNLOCKED position.
  • the target lever of the switch mechanism moves outboards
  • the target of the control lever is in line with the proximity sensor
  • the latching hooks move to the unlocked position.
8.On the control panel:
On the AFT cargo door:
  • set the selector in the CLOSE position.
  • the cargo door moves in the close direction
  • when the cargo door is fully closed, the interlock mechanism does not block the latching shaft.
9.On the AFT cargo door:
On the AFT cargo door:
  • examine the cargo door during the movement.
  • the cargo door must close smoothly and easily.
10.On the control panel:
On the AFT cargo door:
  • release the selector when the cargo door is fully closed.
  • the cargo door stays in the closed position.
11.On the AFT cargo door:
On the AFT cargo door:
  • move the door handle down to the LOCKED position.
  • the latching hooks engage with the latch fittings
  • the cargo door is in the fully closed position
  • the vent door closes
  • the drift pins extend into the receptacles of the fuselage
  • the latching handle is in line with the outer skin and locked.

On the lower ECAM DU:
  • the message CARGO goes off and the symbol for the AFT cargo door changes to green.
12.On the AFT cargo door:
On the AFT cargo door:
  • make sure that the cargo door is correctly latched and locked
  • you can see the green mark on each safety cam through the indication window.
  • make sure that the vent door is correctly closed.
  • the vent door seal touches the inner surface of the outer skin.
  • examine the cargo door seal of the closed cargo door.
  • the door seal is compressed around its length.
Subtask 52-32-00-710-050-D ** ON A/C NOT FOR ALL
WARNING: MAKE SURE THAT THE TRAVEL RANGE OF THE CARGO DOOR IS CLEAR BEFORE YOU UNLOCK IT. STAY AFT OF (LEFT OF) THE DOOR WHEN YOU UNLOCK IT BECAUSE IT CAN OPEN SUDDENLY AND CAUSE INJURY.
CAUTION: IMMEDIATELY AFTER YOU OPEN THE CARGO COMPARTMENT DOOR, RECORD ON THE WORK CARD ON THE DOOR, THE DATE AND TIME WHEN YOU OPENED IT. IF THE CARGO COMPARTMENT DOOR STAYS OPEN FOR 12 HOURS OR MORE, YOU MUST BLEED THE HYDRAULIC SYSTEM RELATED TO IT. IF YOU DO NOT OBEY THESE PRECAUTIONS, THE DOOR CAN CLOSE SUDDENLY WHEN YOU SET THE DOOR TO "CLOSE". THIS CAN CAUSE DAMAGE TO THE DOOR AND TO THE AIRCRAFT STRUCTURE.
A. Do this test:
ACTION
RESULT
1.On the AFT cargo door:
On the AFT cargo door:
  • push the handle flap in and pull the door handle away from the recess of the door structure.
  • the vent door opens inboard
  • the drift pins retract from the receptacles of the fuselage
  • you can see the red mark on each safety cam through the indication window.

On the lower ECAM DU:
  • the symbol of the AFT cargo door is shown in amber and the message CARGO comes on.

On the AFT cargo door:
  • move the door handle fully up to the UNLOCKED position.
  • the latching hooks disengage from the latch fittings
  • the cargo door starts to open because of the force of gravity.
2.On the control panel:
On the AFT cargo door:
  • move the selector to the OPEN position and hold it.
  • the door actuators extend and the cargo door moves in the open direction.
  • release the selector.
  • the cargo door stops and stays in this position.
  • set the selector in the OPEN position again and hold.
  • the cargo door moves in the open direction.

On the control panel:
  • the green indicator light comes on when the door actuators are extended and locked.
3.On the AFT cargo door:
On the AFT cargo door:
  • examine the cargo door during the movement.
  • the cargo door must open smoothly and easily.
4.On the control panel:
On the AFT cargo door:
  • release the selector when the green indicator light is on.
  • the cargo door stays in the fully open position.

On the control panel:
  • move the selector in the CLOSE direction and hold it.
  • the selector is not in the CLOSE position
  • the green indicator light goes off as soon as the door actuators are not in their locked position.

On the AFT cargo door:
  • set the selector to the fully CLOSE position and hold it.
  • the door actuators retract and the cargo door moves in the close direction.
  • release the selector when the cargo door is in a position in which you can do an interlock mechanism check.
  • the cargo door stops and stays in this position.
5.On the AFT cargo door:
On the AFT cargo door:
  • try to move the door handle from the UNLOCKED to the LOCKED position.
  • you cannot move the door handle because the interlock mechanism blocks the cam of the locking shaft.
  • press the roller lever of the interlock mechanism outboard.
  • the blockage of the latching shaft is released.
  • move the door handle down to the LOCKED position.
  • the latching hooks move to their locked position
  • the target lever of the switch mechanism moves inboard
  • the target of the control lever is not in line with the proximity sensor.
6.On the control panel:
On the AFT cargo door:
  • set the selector in the OPEN or CLOSE position.
  • the cargo door must stay in the same position.
7.On the AFT cargo door:
On the AFT cargo door:
  • Push the handle flap in and pull the door handle away and up to the UNLOCKED position.
  • the target lever of the switch mechanism moves outboard
  • the target of the control lever is in line with the proximity sensor
  • the latching hooks move to the unlocked position.
8.On the control panel:
On the AFT cargo door:
  • set the selector in the CLOSE position.
  • the cargo door moves in the close direction
  • when the cargo door is fully closed, the interlock mechanism does not block the latching shaft.
9.On the AFT cargo door:
On the AFT cargo door:
  • examine the cargo door during the movement.
  • the cargo door must close smoothly and easily.
10.On the control panel:
On the AFT cargo door:
  • release the selector when the cargo door is fully closed.
  • the cargo door stays in the closed position.
11.On the AFT cargo door:
On the AFT cargo door:
  • move the door handle down to the LOCKED position.
  • the latching hooks engage with the latch fittings
  • the cargo door is in the fully closed position
  • the vent door closes
  • the drift pins extend into the receptacles of the fuselage
  • the latching handle is in line with the outer skin and locked.

On the lower ECAM DU:
  • the message CARGO goes off and the symbol for the AFT cargo door changes to green.
12.On the AFT cargo door:
On the AFT cargo door:
  • make sure that the cargo door is correctly latched and locked.
  • you can see the green mark on each safety cam through the indication window.
  • make sure that the vent door is correctly closed.
  • the vent door seal touches the inner surface of the outer skin.
  • examine the cargo door seal of the closed cargo door.
  • the door seal is compressed around its length.
5. Close-up
Subtask 52-32-00-860-051-A
A. Put the aircraft back to the serviceable condition.
   (1) Do the EIS stop procedure
(Ref. AMM TASK 31-60-00-860-002)
   (2) Make sure that the Yellow auxiliary hydraulic system is depressurized (Ref. AMM TASK 29-24-00-864-001).
   (3) Make sure that the aircraft electrical circuits are de-energized (Ref. AMM TASK 24-41-00-862-002).
Subtask 52-32-00-410-050-A
B. Close Access
   (1) Make sure that the cargo door is correctly closed (Ref. AMM TASK 52-30-00-860-002).
   (2) Close the access panel 154AR.
   (3) Remove the access platform(s).
[Rev.10 from 2021] 2026.04.01 01:41:54 UTC