DOC AIRBUS | AMM A320FInstallation of the Avionics-Compartment Aft Door
TASK 52-41-14-400-001-A
Installation of the Avionics-Compartment Aft Door
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Expendable Parts
E. Referenced Information
3. Job Set-up
Subtask 52-41-14-860-050-A
Subtask 52-41-14-420-050-A
Subtask 52-41-14-865-052-A
[Rev.10 from 2021]
2026.04.02 07:23:43 UTC
Installation of the Avionics-Compartment Aft Door
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
CAUTION:
THIS PART IS A REMOVABLE STRUCTURAL COMPONENT (RSC), WHICH CAN BE MOVED BETWEEN AIRCRAFT. THUS IT CAN HAVE DIFFERENT OPERATION CONDITIONS AND A DIFFERENT LIFE RECORD (FLIGHT HOURS/FLIGHT CYCLES/CALENDAR) FROM THE AIRCRAFT IT IS INSTALLED ON OR REMOVED FROM. THE OPERATOR IS RESPONSIBLE FOR THE SPECIFIC TRACKING AND CONTINUED AIRWORTHINESS OF REMOVABLE STRUCTURAL COMPONENTS. INCORRECT MAINTENANCE OF THESE COMPONENTS CAN CAUSE A RISK FOR THE FLIGHT SAFETY.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.03FAB1) | Mineral Oil base Grease-- Vaseline or Petrolatum - |
| (Material No.03HBD9) | Synthetic Ester base Grease-General Purpose Low Temp - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 824 |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | COTTER PIN | AIPC 52-41-01-04-030 |
| 9 | COTTER PINS | AIPC 52-41-01-04-120 |
| 2 | COTTER PIN | AIPC 52-41-81-04-030 |
| 9 | COTTER PINS | AIPC 52-41-81-04-120 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-720-005-A | Check of the Electrical Bonding of the Different Components (but not the Fluid Systems and Components Installed on Composite materials) |
| TASK 52-41-00-410-002-A | Close the Avionics Compartment Doors after Access |
| TASK 52-71-00-710-001-A | Operational Test of the Door Warning System |
Avionics-Compartment Aft DoorSubtask 52-41-14-860-050-A
A. Aircraft Maintenance Configuration
(1) Make sure that the access platform is in position at zone 128.
Subtask 52-41-14-865-051-A (1) Make sure that the access platform is in position at zone 128.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
Subtask 52-41-14-916-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 121VU | EIS/SDAC1 AND 2/DOOR/DET/AVNCS | 46WV | P02 |
C. Preparation for Installation
(1) Clean the aircraft structure which touches the door seal, with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Apply Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the surface of the seal which touches the aircraft structure.
4. Procedure(1) Clean the aircraft structure which touches the door seal, with Non Aqueous Cleaner-General - - (Material No.08BAA9) .
(2) Apply Mineral Oil base Grease-- Vaseline or Petrolatum - (Material No.03FAB1) on the surface of the seal which touches the aircraft structure.
Subtask 52-41-14-420-050-A
A. Installation of the Avionics-Compartment Aft Door
(1) Install the bushes (11), (10) and (13).
(2) Put the door (1) in position opposite the hinges.
(3) Install the pins (12).
(4) Install the washer (14) and the nuts (8) and tighten the nuts.
(5) Install the new AIPC 52-41-01-04-120 COTTER PINS (9) or AIPC 52-41-81-04-120 COTTER PINS (9).
(6) Connect the bonding leads (7).
(7) Check the electrical bonding between the door (1) and the fuselage structure (Ref. AMM TASK 20-28-00-720-005).
(8) Put the washer (6), then the actuator (5) in position.
(9) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the rod pin of the door.
(10) Install the washer (4) and the nut (3) and tighten it.
(11) Install the AIPC 52-41-01-04-030 COTTER PIN (2) or AIPC 52-41-81-04-030 COTTER PIN (2).
Subtask 52-41-14-220-050-A ** ON A/C NOT FOR ALL (1) Install the bushes (11), (10) and (13).
(2) Put the door (1) in position opposite the hinges.
(3) Install the pins (12).
(4) Install the washer (14) and the nuts (8) and tighten the nuts.
(5) Install the new AIPC 52-41-01-04-120 COTTER PINS (9) or AIPC 52-41-81-04-120 COTTER PINS (9).
(6) Connect the bonding leads (7).
(7) Check the electrical bonding between the door (1) and the fuselage structure (Ref. AMM TASK 20-28-00-720-005).
(8) Put the washer (6), then the actuator (5) in position.
(9) Apply Synthetic Ester base Grease-General Purpose Low Temp - (Material No.03HBD9) to the rod pin of the door.
(10) Install the washer (4) and the nut (3) and tighten it.
(11) Install the AIPC 52-41-01-04-030 COTTER PIN (2) or AIPC 52-41-81-04-030 COTTER PIN (2).
B. Check and Adjustment of the Out-of-flush Dimension Between the Door (11) and the Fuselage
(1) Close the door (11) and measure the clearance J2 between the door stops and the stop fittings.
(2) Make sure that J2 is 0.2 mm (0.0079 in.) minimum.
(3) Measure the out-of-flush dimension J1 between the door (11) and the fuselage at points P1 and P2.
(4) Calculate the final out-of-flush dimension J at points P1 and P2 as follows:
J= J1+J2
(5) Make sure that the out-of-flush dimension J is 0 -0.8 mm or +0.8 mm (0.0000 -0.0315 in. or +0.0315 in.).
(6) If the out-of-flush dimension J is not in the tolerances:
(a) Open the door (11) and adjust the door stop.
Subtask 52-41-14-220-054-A ** ON A/C NOT FOR ALL (1) Close the door (11) and measure the clearance J2 between the door stops and the stop fittings.
(2) Make sure that J2 is 0.2 mm (0.0079 in.) minimum.
(3) Measure the out-of-flush dimension J1 between the door (11) and the fuselage at points P1 and P2.
(4) Calculate the final out-of-flush dimension J at points P1 and P2 as follows:
J= J1+J2
(5) Make sure that the out-of-flush dimension J is 0 -0.8 mm or +0.8 mm (0.0000 -0.0315 in. or +0.0315 in.).
(6) If the out-of-flush dimension J is not in the tolerances:
(a) Open the door (11) and adjust the door stop.
- Remove the two self-locking nuts (12), the two screws (13) and the washers (14).
- Put a new set of washers (14) and install the two screws (13) and the two self-locking nuts (12).
- Close the door (11) and make sure that the clearance J2 is 0.2 mm (0.0079 in.) minimum.
- TORQUE the two self-locking nuts (12) to between 0.45 and 0.35 m.daN (39.82 and 30.97 lbf.in )
.
C. Check of the Peripheral Clearance
(1) Make sure that the peripheral clearance J4 between the door (11) and the fuselage is 2 +1 mm or -1 mm (0.0787 +0.0394 in. or -0.0394 in.).
Subtask 52-41-14-220-050-B ** ON A/C NOT FOR ALL (1) Make sure that the peripheral clearance J4 between the door (11) and the fuselage is 2 +1 mm or -1 mm (0.0787 +0.0394 in. or -0.0394 in.).
D. Check and Adjustment of the Out-of-flush Dimension between the Door and the Fuselage
(1) Close the door (11) and measure clearance J2 between the door stops and the stop fittings.
(2) Make sure that clearance J2 is a minimum of 0.2 mm (0.01 in.).
(3) Measure the out-of-flush dimension J1 between the door (11) and the fuselage at points P1 and P2.
(4) Calculate the final out-of-flush dimension J at points P1 and P2 as follows:
J= J1+J2
(5) Make sure that the out-of-flush dimension J is 0 -0.8 mm or +0.8 mm (0.00 -0.03 in. or +0.03 in.).
(a) Open the door (11) and adjust the door stop.
Subtask 52-41-14-220-054-B ** ON A/C NOT FOR ALL (1) Close the door (11) and measure clearance J2 between the door stops and the stop fittings.
(2) Make sure that clearance J2 is a minimum of 0.2 mm (0.01 in.).
(3) Measure the out-of-flush dimension J1 between the door (11) and the fuselage at points P1 and P2.
(4) Calculate the final out-of-flush dimension J at points P1 and P2 as follows:
J= J1+J2
(5) Make sure that the out-of-flush dimension J is 0 -0.8 mm or +0.8 mm (0.00 -0.03 in. or +0.03 in.).
NOTE: A maximum clearance of 0 -1.2 mm or +1.2 mm (0.00 -0.05 in. or +0.05 in.) is permitted for the out-of-flush dimension J at points P1 and P2 if the peripheral clearance J3, at points P1 and P2, is not in the maximum clearance. You must refer to Para. 4.C for the peripheral clearance J3.
(6) If the out-of-flush dimension J is not in the tolerances: (a) Open the door (11) and adjust the door stop.
- Remove the two self-locking nuts (12), the two screws (13) and the washers (14).
- Put a new set of washers (14) and install the two screws (13) and the two self-locking nuts (12).
- Close the door (11) and make sure that clearance J2 is a minimum of 0.2 mm (0.01 in.).
- TORQUE the two self-locking nuts (12) to between 0.45 and 0.35 m.daN (39.82 and 30.97 lbf.in ) .
E. Check of the Peripheral Clearance
(1) Make sure that the peripheral clearance J4 between the door (11) and the fuselage is 2 +1 mm or -1 mm (0.08 +0.04 in. or -0.04 in.).
Subtask 52-41-14-220-053-A (1) Make sure that the peripheral clearance J4 between the door (11) and the fuselage is 2 +1 mm or -1 mm (0.08 +0.04 in. or -0.04 in.).
NOTE: A maximum clearance of 2 -1.5 mm or +1.5 mm (0.08 -0.06 in. or +0.06 in.) is permitted for the peripheral clearance J4, if the out-of flush dimension J, at points P1 and P2, is not in the maximum clearance. You must refer to Para. 4.B for the out-of flush dimension J.
F. Check and Adjustment of the Clearance between the Door and the Feeders
(1) Open the door (17).
(2) Make sure that the clearance J3 between the door (17) and the feeders (18) is 20 mm (0.7874 in.) minimum.
(3) If the clearance J3 is not in the tolerance:
(a) Loosen the nut (15).
(b) Lower the eccentric nut (16) and make sure that the clearance J3 is 20 mm (0.7874 in.) minimum.
(c) Torque the nut (15) to between 0.75 and 0.62 m.daN (66.37 and 54.87 lbf.in ).
(4) Close the door (17).
Subtask 52-41-14-220-051-A (1) Open the door (17).
(2) Make sure that the clearance J3 between the door (17) and the feeders (18) is 20 mm (0.7874 in.) minimum.
(3) If the clearance J3 is not in the tolerance:
(a) Loosen the nut (15).
(b) Lower the eccentric nut (16) and make sure that the clearance J3 is 20 mm (0.7874 in.) minimum.
(c) Torque the nut (15) to between 0.75 and 0.62 m.daN (66.37 and 54.87 lbf.in )
. (4) Close the door (17).
G. Check of the Load on the Locking Handle
(1) Close the door
(2) Measure the load on the door handle with a DYNAMOMETER 20 DAN (45 LBF) - PULL and make sure that the load is between 8 daN (17.98 lbf) and 16 daN (35.97 lbf).
Subtask 52-41-14-710-050-A 5. Close-up(1) Close the door
(2) Measure the load on the door handle with a DYNAMOMETER 20 DAN (45 LBF) - PULL and make sure that the load is between 8 daN (17.98 lbf) and 16 daN (35.97 lbf).
Subtask 52-41-14-865-052-A
A. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 52-41-14-410-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 121VU | EIS/SDAC1 AND 2/DOOR/DET/AVNCS | 46WV | P02 |
B. Close Access
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Close the access door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).
(1) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(2) Close the access door 824 (Ref. AMM TASK 52-41-00-410-002).
(3) Remove the access platform(s).