DOC AIRBUS | AMM A320FInstallation of the Access Panel
TASK 57-27-11-400-005-B
Installation of the Access Panel
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 57-27-11-941-074-A ** ON A/C NOT FOR ALL
Subtask 57-27-11-110-058-A ** ON A/C NOT FOR ALL
Subtask 57-27-11-410-061-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 02:11:57 UTC
Installation of the Access Panel
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
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 | 1 | ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE |
| No specific | AR | SAFETY BARRIER(S) |
| No specific | AR | WARNING NOTICE(S) |
| 98D27803500001 | 1 | LOCKING TOOL ZERO POS |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06ABB1) | Polysulfide Sealant-Fuel Tank Fillet - |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 521 | INBOARD FIXED L.E STRUCTURE |
| 621 | INBOARD FIXED L.E STRUCTURE |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 2 | SEAL | AIPC 57-24-05-13-050 |
| 2 | SEAL | AIPC 57-24-05-13-100 |
| 2 | SEAL | AIPC 57-24-85-13-050 |
| 2 | SEAL | AIPC 57-24-85-13-100 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 12-11-28-650-003-A | Pressure Refuel with Automatic Control |
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| 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 57-41-37-000-004-A | Removal of the Pressure Relief Panels |
| TASK 57-41-37-400-002-A | Installation of the Pressure Relief Panels |
| TASK 73-11-10-920-001-B | Remove, Inspect and Replace Fuel Filter Element |
Access Panel 521AZ (621AZ), 521BZ (621BZ), 521CZ (621CZ)Subtask 57-27-11-941-074-A ** ON A/C NOT FOR ALL
A. Safety Precautions
(2) Make sure that the SAFETY BARRIER(S) are in position.
(3) Make sure the 98D27803500001 LOCKING TOOL ZERO POS is correctly installed on the flap/slat control lever.
(4) Make sure the WARNING NOTICE(S) are in position in the cockpit to tell persons not to operate the flaps or slats.
Subtask 57-27-11-860-075-A ** ON A/C NOT FOR ALL 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) and (Ref. AMM TASK 28-10-00-910-002). (2) Make sure that the SAFETY BARRIER(S) are in position.
(3) Make sure the 98D27803500001 LOCKING TOOL ZERO POS is correctly installed on the flap/slat control lever.
(4) Make sure the WARNING NOTICE(S) are in position in the cockpit to tell persons not to operate the flaps or slats.
B. Aircraft Maintenance Configuration
(1) Make sure that the applicable fuel tank has been defueled (Ref. AMM TASK 28-25-00-650-001).
(2) Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
Subtask 57-27-11-010-067-A ** ON A/C NOT FOR ALL (1) Make sure that the applicable fuel tank has been defueled (Ref. AMM TASK 28-25-00-650-001).
(2) Make sure that the remaining fuel has been drained from the applicable fuel tank (Ref. AMM TASK 28-25-00-650-003).
C. Get Access
(1) Make sure the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position below the wing leading edge, zone 521(621).
(2) Make sure the leading-edge pressure-relief panel 521EB(621EB) is removed (Ref. AMM TASK 57-41-37-000-004).
4. Procedure(1) Make sure the ACCESS PLATFORM 5M (16 FT)- ADJUSTABLE is in position below the wing leading edge, zone 521(621).
(2) Make sure the leading-edge pressure-relief panel 521EB(621EB) is removed (Ref. AMM TASK 57-41-37-000-004).
Subtask 57-27-11-110-058-A ** ON A/C NOT FOR ALL
A. Preparation for Installation
(1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean the interfaces of the:
Subtask 57-27-11-420-064-A ** ON A/C NOT FOR ALL (1) Use a Textile-Lint free Cotton - (Material No.14SBA1) , made moist with Non Aqueous Cleaner-General - - (Material No.08BAA9) to clean the interfaces of the:
- Access panel (3)
- Access panel assembly (1)
- Front spar.
- Access panel (3)
- Access panel assembly (1)
- Front spar skin.
B. Installation of the Access Panel
(1) Make sure that the work area is clean and clear of tools and equipment before you install the:
(4) Put the access panel assembly (1) in position on the aft face of the front spar.
(5) Put the access panel (3) in position on the forward face of the front spar.
(6) Install the bolts (4).
(7) Tighten the bolts (4).
(8) Make sure that the access panel (3) is correctly bonded to the structure:
(a) Do a bonding test between the access panel and the front spar (Ref. AMM TASK 20-28-00-912-802).
(b) Make sure that the electrical resistance is less than 10 milliohms.
Subtask 57-27-11-790-056-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and equipment before you install the:
- Access panel (3)
- Access panel assembly (1).
- Access panel (3)
- Access panel assembly (1)
- Front spar.
(4) Put the access panel assembly (1) in position on the aft face of the front spar.
(5) Put the access panel (3) in position on the forward face of the front spar.
(6) Install the bolts (4).
(7) Tighten the bolts (4).
(8) Make sure that the access panel (3) is correctly bonded to the structure:
(a) Do a bonding test between the access panel and the front spar (Ref. AMM TASK 20-28-00-912-802).
(b) Make sure that the electrical resistance is less than 10 milliohms.
C. Test
(1) Refuel the applicable wing tank(s) (Ref. AMM TASK 12-11-28-650-003).
(a) Examine the access panel you have installed for leaks. Leaks are not permitted.
5. Close-up(1) Refuel the applicable wing tank(s) (Ref. AMM TASK 12-11-28-650-003).
(a) Examine the access panel you have installed for leaks. Leaks are not permitted.
Subtask 57-27-11-410-061-A ** ON A/C NOT FOR ALL
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable leading-edge pressure-relief panel 521EB(621EB) (Ref. AMM TASK 57-41-37-400-002).
Subtask 57-27-11-960-053-A ** ON A/C NOT FOR ALL (1) Make sure that the work area is clean and clear of tools and other items.
(2) Install the applicable leading-edge pressure-relief panel 521EB(621EB) (Ref. AMM TASK 57-41-37-400-002).
B. Aircraft Maintenance Configuration
(1) Replace the fuel filter at scheduled intervals (Ref. AMM TASK 73-11-10-920-001). For more information about the scheduled replacement, refer to MPD 730000-C4-1.
Subtask 57-27-11-942-062-A ** ON A/C NOT FOR ALL (1) Replace the fuel filter at scheduled intervals (Ref. AMM TASK 73-11-10-920-001). For more information about the scheduled replacement, refer to MPD 730000-C4-1.
NOTE: The operation of the aircraft must agree with the ETOPS standards. You can refer to the last revision of CMP 28-2-00000-002 for other requirements.
C. Removal of Equipment
(1) Remove the safety barriers.
(2) Remove the access platform(s).
(3) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
(4) Remove the WARNING NOTICE(S).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
(1) Remove the safety barriers.
(2) Remove the access platform(s).
(3) Remove the 98D27803500001 LOCKING TOOL ZERO POS from the flap/slat control lever.
(4) Remove the WARNING NOTICE(S).
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.