DOC AIRBUS | AMM A320FInstallation of the Skin Air Outlet-Valve
TASK 21-26-53-400-001-A
Installation of the Skin Air Outlet-Valve
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 21-26-53-420-051-A
Subtask 21-26-53-942-050-A
[Rev.10 from 2021]
2026.04.02 06:11:08 UTC
Installation of the Skin Air Outlet-Valve
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
1. Reason for the JobSelf explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.06AEB2) | Polysulfide Sealant-Low Adhesion Fillet Structure |
| (Material No.08BAA9) | Non Aqueous Cleaner-General - - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 126 | LATERAL AVIONIC COMPARTMENT |
| FIG.ITEM | DESIGNATION | IPC-CSN |
|---|---|---|
| 5 | O-RING | AIPC 21-26-01-15-030 |
| 5 | O-RING | AIPC 21-26-81-15-030 |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-28-00-912-802-A | Electrical Bonding - General Maintenance Procedure |
| TASK 21-26-00-710-001-A | Operational Check of the Avionics Equipment Ventilation-System via MCDU |
| TASK 21-26-00-710-001-A-01 | Operational Check of the Avionics Equipment Ventilation (without the CFDS) |
| TASK 24-42-00-861-001-A | Energize the Ground Service Network from the External Power |
| TASK 24-42-00-862-001-A | De-energize the Ground Service Network Supplied from the External Power |
Skin Air Outlet-ValveCAUTION:
USE ONLY THE GROUND SERVICE NETWORK TO SUPPLY ELECTRICITY BECAUSE THE AVIONICS VENTILATION SYSTEM IS NOT SERVICEABLE. IF YOU ENERGIZE THE AIRCRAFT ELECTRICAL CIRCUITS WITHOUT THE VENTILATION SYSTEM YOU WILL CAUSE DAMAGE TO ELECTRICAL EQUIPMENT.
Subtask 21-26-53-860-050-A A. Aircraft Maintenance Configuration
(1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position on the right side of the aircraft, below the valve.
Subtask 21-26-53-865-051-A (1) Make sure that the ground service network is energized
(Ref. AMM TASK 24-42-00-861-001).
(2) Make sure that the ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE is in position on the right side of the aircraft, below the valve.
B. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged:
4. Procedure| PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | AIR COND/AVNCS VENT/CTL | 6HQ | D06 |
Subtask 21-26-53-420-051-A
A. Installation of the Skin Air Outlet-Valve
(1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the deactivation switch of the valve (2) is in the ON position.
(4) Remove the blanking plug from the air outlet.
(5) Application of sealants:
1 Make sure that you also apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) into the peripheral clearance between the edge of the valve (2) and the aircraft skin.
(7) Remove the CAP-BLANKING from each electrical connector and receptacle.
(8) Make sure that all the electrical connections are clean and in the correct condition.
(9) Connect the electrical connector (6).
(10) Install the valve (2).
(11) Install the screws (3) and (4) and tighten them.
(12) Remove the unwanted Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) with Non Aqueous Cleaner-General - - (Material No.08BAA9) and make the surface smooth.
(13) Do the bonding with the screw at the top and the screw at the bottom (Ref. AMM TASK 20-28-00-912-802).
Subtask 21-26-53-865-052-A (1) Clean the component interfaces and the adjacent area.
(2) Do an inspection of the component interfaces and the adjacent area.
(3) Make sure that the deactivation switch of the valve (2) is in the ON position.
(4) Remove the blanking plug from the air outlet.
(5) Application of sealants:
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
(a) Apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) to the mating surfaces of the structure (1) and the valve (2): 1 Make sure that you also apply Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) into the peripheral clearance between the edge of the valve (2) and the aircraft skin.
NOTE: It is necessary to fully fill the space around the valve between the aircraft skin and the valve. To do this, you must apply a sufficient quantity of sealant before you install the valve.
NOTE: The sealant must be new and you must not wait for the sealant to cure before you install the skin air-outlet valve.
NOTE: The sealant must not be tacky at the aircraft dispatch. The technical data sheet of the sealant gives the time you must wait until the sealant is no longer tacky.
(6) Install the new AIPC 21-26-01-15-030 O-RING (5) or AIPC 21-26-81-15-030 O-RING (5) in the groove of the valve (2). (7) Remove the CAP-BLANKING from each electrical connector and receptacle.
(8) Make sure that all the electrical connections are clean and in the correct condition.
(9) Connect the electrical connector (6).
(10) Install the valve (2).
(11) Install the screws (3) and (4) and tighten them.
(12) Remove the unwanted Polysulfide Sealant-Low Adhesion Fillet Structure (Material No.06AEB2) with Non Aqueous Cleaner-General - - (Material No.08BAA9) and make the surface smooth.
(13) Do the bonding with the screw at the top and the screw at the bottom (Ref. AMM TASK 20-28-00-912-802).
B. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
Subtask 21-26-53-710-050-A | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C ALL | |||
| 49VU | AIR COND/AVNCS VENT/CTL | 6HQ | D06 |
C. Do an operational test of the ventilation system of the avionics equipment (Ref. AMM TASK 21-26-00-710-001).
5. Close-upNOTE: As an alternative procedure, you can do this operational test without the CFDS.
Subtask 21-26-53-942-050-A
A. Close Access
(1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).
Subtask 21-26-53-862-051-A (1) Make sure that the work area is clean and clear of tools and other items.
(2) Remove the access platform(s).