DOC AIRBUS | AMM A320FDeactivation of the Cargo Door Actuator(s)
TASK 52-36-00-040-001-A
Deactivation of the Cargo Door Actuator(s)
MMEL 52-30-02B
CARGO DOOR ACTUATOR
MMEL 52-30-02C
CARGO DOOR ACTUATOR
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Referenced Information
3. Job Set-up
Subtask 52-36-00-010-052-A
Subtask 52-36-00-040-050-A
Subtask 52-36-00-410-052-A
[Rev.10 from 2021]
2026.04.02 06:28:10 UTC
Deactivation of the Cargo Door Actuator(s)
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.
FIN: 2502MJ
FIN: 2503MJ
FIN: 2505MJ
FIN: 2506MJ
Task Summary
1. Reason for the JobFIN: 2503MJ
FIN: 2505MJ
FIN: 2506MJ
Task Summary
| Access | Test | Specific Tools | Mhr | E/T | Nb Men |
|---|---|---|---|---|---|
| NO | NO | YES | 1.0 | 1.0 | 1 |
MMEL 52-30-02B
CARGO DOOR ACTUATOR
MMEL 52-30-02C
CARGO DOOR ACTUATOR
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE |
| No specific | AR | CAP - BLANKING |
| No specific | 1 | CONTAINER 5 L (1.32 USGAL) |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | PLUG - BLANKING, PRESSURE |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 98A52008509000 | 1 | SLING-UNIVERSAL,DOORS |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-12-29-611-001-A | Fill the Hydraulic Fluid Reservoir with a Hand Pump |
| 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 29-10-00-864-002-A | Depressurize the Yellow Hydraulic System |
| TASK 29-14-00-614-001-A | Depressurization of the Hydraulic Reservoirs |
| 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 31-60-00-860-001-A | EIS Start Procedure |
| TASK 52-30-00-860-002-A | Close the FWD or Aft Cargo-Compartment Door with the Yellow Electric Pump |
| TASK 52-30-00-860-005-A | Open the FWD or Aft Cargo-Compartment Door with the Crane |
| TASK 52-30-00-860-009-A | Close the FWD or Aft Cargo-Compartment Door with the Crane |
Cargo Door ActuatorSubtask 52-36-00-010-052-A
A. Get Access
(1) Make sure that the FWD or Aft cargo-compartment door (referred to as cargo door) is fully opened and safetied with the support struts (Ref. AMM TASK 52-30-00-860-005).
(2) Open the access panel 134AR or 154AR to get access to the service panel of the applicable cargo door.
(3) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
Subtask 52-36-00-865-054-A (1) Make sure that the FWD or Aft cargo-compartment door (referred to as cargo door) is fully opened and safetied with the support struts (Ref. AMM TASK 52-30-00-860-005).
(2) Open the access panel 134AR or 154AR to get access to the service panel of the applicable cargo door.
(3) Put the ACCESS PLATFORM 4M (13 FT)-ADJUSTABLE in position below the opened cargo door.
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 52-36-00-860-055-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| ** ON A/C ALL | |||
| 122VU | DOORS/CARGO | 1MJ | T12 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
C. Aircraft Maintenance Configuration
(1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
(2) Depressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(3) Put a WARNING NOTICE(S) in the cockpit on overhead panel 40VU to prevent the operation of the Yellow hydraulic system.
(4) Put a WARNING NOTICE(S) on the ground service panel to prevent the operation of the Yellow hydraulic system.
(5) Put a CONTAINER 5 L (1.32 USGAL) below the hydraulic connections of the door actuator(s) to collect the hydraulic fluid.
4. Procedure(1) Depressurize the Yellow hydraulic system (Ref. AMM TASK 29-10-00-864-002).
(2) Depressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-001).
(3) Put a WARNING NOTICE(S) in the cockpit on overhead panel 40VU to prevent the operation of the Yellow hydraulic system.
(4) Put a WARNING NOTICE(S) on the ground service panel to prevent the operation of the Yellow hydraulic system.
(5) Put a CONTAINER 5 L (1.32 USGAL) below the hydraulic connections of the door actuator(s) to collect the hydraulic fluid.
Subtask 52-36-00-040-050-A
A. Deactivation of the Door Actuator(s)
(a) Loosen the union and remove the flexible hose (22) from port A of the door actuator (11).
(b) Loosen the union and remove the flexible hose (21) from port B of the door actuator (11).
(c) Install the PLUG - BLANKING on the open ends of the door actuator ports.
(d) Install the PLUG - BLANKING, PRESSURE on the open ends of the flexible hoses.
(2) For each damaged door actuator, remove it as follows:
(a) Remove the electrical connector (20) from the receptacle of the proximity switch.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(c) Remove the screw (7), the washer (8), the nut (10) and disconnect the bonding jumper (9) from the bonding angle of the piston eye-end (6).
(d) Remove the screw (17) and the washer (18) and disconnect the bonding jumper (19) from the door actuator (11).
(e) Remove and discard the cotter pin (5) from the nut (4).
(f) Remove the nut (4) and the washer (2) from the bolt (1).
(g) Support the door actuator (11) and remove the bolt (1) with the washer (2) from the actuator attachment fitting (3).
(h) Remove the piston eye-end (6) from the actuator attachment fitting (3).
(i) Remove and discard the cotter pin (12) from the nut (13).
(j) Remove the nut (13) and the washer (14) from the bolt (16).
(k) Support the door actuator (11) and remove the bolt (16) and the washer (14) from the actuator beam (15).
(l) Remove the door actuator (11) from the actuator beam (15).
(3) Measure the distance between the eye-ends of the removed door actuator and record it to make the installation procedure easier.
Subtask 52-36-00-865-055-A CAUTION:
USE A SECOND WRENCH TO APPLY COUNTERTORQUE TO THE UNION WHEN YOU DISCONNECT/CONNECT HYDRAULIC LINES ON UNIONS. IF YOU DO NOT USE THE SECOND WRENCH, THERE IS A RISK THAT YOU WILL LOOSEN OR TIGHTEN THE UNION TOO MUCH.
(1) For each damaged door actuator, remove the flexible hoses from it as follows:(a) Loosen the union and remove the flexible hose (22) from port A of the door actuator (11).
(b) Loosen the union and remove the flexible hose (21) from port B of the door actuator (11).
(c) Install the PLUG - BLANKING on the open ends of the door actuator ports.
(d) Install the PLUG - BLANKING, PRESSURE on the open ends of the flexible hoses.
(2) For each damaged door actuator, remove it as follows:
(a) Remove the electrical connector (20) from the receptacle of the proximity switch.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(c) Remove the screw (7), the washer (8), the nut (10) and disconnect the bonding jumper (9) from the bonding angle of the piston eye-end (6).
(d) Remove the screw (17) and the washer (18) and disconnect the bonding jumper (19) from the door actuator (11).
(e) Remove and discard the cotter pin (5) from the nut (4).
(f) Remove the nut (4) and the washer (2) from the bolt (1).
(g) Support the door actuator (11) and remove the bolt (1) with the washer (2) from the actuator attachment fitting (3).
(h) Remove the piston eye-end (6) from the actuator attachment fitting (3).
(i) Remove and discard the cotter pin (12) from the nut (13).
(j) Remove the nut (13) and the washer (14) from the bolt (16).
(k) Support the door actuator (11) and remove the bolt (16) and the washer (14) from the actuator beam (15).
(l) Remove the door actuator (11) from the actuator beam (15).
(3) Measure the distance between the eye-ends of the removed door actuator and record it to make the installation procedure easier.
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 52-36-00-860-054-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N30 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | HYDRAULIC/HYD POWER/Y | 3803GX | N31 |
| ** ON A/C ALL | |||
| 122VU | DOORS/CARGO | 1MJ | T12 |
| 123VU | Y HYD/ELEC/PUMP | 3802GX | AB06 |
| 123VU | Y HYD/ELEC/ELEC PUMP/NORM | 3801GX | AB03 |
C. Aircraft Maintenance Configuration
(1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Set the Electronic Centralized Aircraft Monitor (ECAM) system to ON (Ref. AMM TASK 31-60-00-860-001).
(3) Remove the WARNING NOTICE(S) from the ground service panel and the cockpit.
(4) Pressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-002).
Subtask 52-36-00-790-050-A (1) Make sure that the aircraft electrical circuits are energized (Ref. AMM TASK 24-41-00-861-002).
(2) Set the Electronic Centralized Aircraft Monitor (ECAM) system to ON (Ref. AMM TASK 31-60-00-860-001).
(3) Remove the WARNING NOTICE(S) from the ground service panel and the cockpit.
(4) Pressurize the reservoir of the Yellow hydraulic system (Ref. AMM TASK 29-14-00-614-002).
D. Leak Check of the Door Hydraulic System (if one door actuator is deactivated)
(1) Turn the selector of the service panel to the OPEN position and hold it for three seconds to bleed the door actuator.
(2) Remove the support struts from the cargo door structure and the door frame of the fuselage.
(3) Turn the selector of the service panel to the CLOSE position and hold it until the cargo door moves down.
(4) Open and close the cargo door three times. Make sure that the cargo door is fully opened.
(5) Do a visual inspection of the door actuators, the pipes, the hoses and the related valves. Make sure that there are no leaks.
Subtask 52-36-00-790-051-A (1) Turn the selector of the service panel to the OPEN position and hold it for three seconds to bleed the door actuator.
(2) Remove the support struts from the cargo door structure and the door frame of the fuselage.
(3) Turn the selector of the service panel to the CLOSE position and hold it until the cargo door moves down.
(4) Open and close the cargo door three times. Make sure that the cargo door is fully opened.
(5) Do a visual inspection of the door actuators, the pipes, the hoses and the related valves. Make sure that there are no leaks.
NOTE: If necessary, disconnect the hydraulic pipes from the defective components and attach correct pressure plugs to the open ends.
(6) Examine the Yellow reservoir level on the HYD page of the lower display unit of the ECAM system. If necessary, fill the Yellow reservoir to its normal fill level (Ref. AMM TASK 12-12-29-611-001). E. Leak Check of the Door Hydraulic System (if two door actuators are deactivated)
(1) Install the 98A52008509000 SLING-UNIVERSAL,DOORS to the cargo door and to the crane (Ref. AMM TASK 52-30-00-860-009).
(3) Turn the selector of the service panel to the OPEN position and hold it for three seconds to bleed the extension line.
(4) Turn the selector of the service panel to the CLOSE position and hold it for three seconds to bleed the retraction line.
(5) Examine the Yellow reservoir level on the HYD page of the lower display unit of the ECAM system. If necessary, fill the Yellow reservoir to its normal fill level (Ref. AMM TASK 12-12-29-611-001).
5. Close-up(1) Install the 98A52008509000 SLING-UNIVERSAL,DOORS to the cargo door and to the crane (Ref. AMM TASK 52-30-00-860-009).
WARNING:
BEFORE YOU REMOVE THE SUPPORT STRUTS, MAKE SURE THAT THE DOOR WEIGHT IS RELEASED FROM THEM WITH THE CRANE. IF YOU DO NOT OBEY THIS INSTRUCTION, THE DOOR WILL MOVE WHEN YOU REMOVE THE SUPPORT STRUTS. THIS CAN CAUSE INJURY TO PERSONS AND DAMAGE TO THE AIRCRAFT OR EQUIPMENT.
(2) Remove the support struts from the cargo door structure and the door frame of the fuselage. (3) Turn the selector of the service panel to the OPEN position and hold it for three seconds to bleed the extension line.
(4) Turn the selector of the service panel to the CLOSE position and hold it for three seconds to bleed the retraction line.
(5) Examine the Yellow reservoir level on the HYD page of the lower display unit of the ECAM system. If necessary, fill the Yellow reservoir to its normal fill level (Ref. AMM TASK 12-12-29-611-001).
Subtask 52-36-00-410-052-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If one door actuator is deactivated, close the cargo door hydraulically (Ref. AMM TASK 52-30-00-860-002).
(3) If the two door actuators are deactivated, close the cargo door with the crane (Ref. AMM TASK 52-30-00-860-009).
(4) Remove the 98A52008509000 SLING-UNIVERSAL,DOORS from the cargo door.
(5) Close access panel 134AR or 154AR.
(6) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(7) Remove the access platform(s).
(8) Make an entry in the logbook.
(1) Make sure that the work area is clean and clear of tools and other items.
(2) If one door actuator is deactivated, close the cargo door hydraulically (Ref. AMM TASK 52-30-00-860-002).
(3) If the two door actuators are deactivated, close the cargo door with the crane (Ref. AMM TASK 52-30-00-860-009).
(4) Remove the 98A52008509000 SLING-UNIVERSAL,DOORS from the cargo door.
(5) Close access panel 134AR or 154AR.
(6) De-energize the aircraft electrical circuits (Ref. AMM TASK 24-41-00-862-002).
(7) Remove the access platform(s).
(8) Make an entry in the logbook.