DOC AIRBUS | AMM A320FPacking of the Oxygen Mask Assemblies in Decentralized Gaseous-Oxygen Container
TASK 35-21-43-550-802-A
Packing of the Oxygen Mask Assemblies in Decentralized Gaseous-Oxygen Container
This task is applicable only for decentralized gaseous-oxygen containers installed in lavatories.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Consumable Materials
C. Work Zones and Access Panels
D. Referenced Information
3. Job Set-up
Subtask 35-21-43-860-054-A ** ON A/C NOT FOR ALL
Subtask 35-21-43-550-051-A ** ON A/C NOT FOR ALL
Subtask 35-21-43-710-053-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.04.01 01:05:01 UTC
Packing of the Oxygen Mask Assemblies in Decentralized Gaseous-Oxygen Container
WARNING:
KEEP ALL HYDROCARBONS (FUELS, LUBRICANTS, ETC.) AWAY FROM ALL SOURCE OF OXYGEN. OXYGEN BECOMES EXPLOSIVE WHEN IT TOUCHES HYDROCARBONS.
WARNING:
CLEAN THE TOOLS AND MAKE SURE YOUR HANDS ARE CLEAN TO PREVENT CONTAMINATION OF THE OXYGEN SYSTEM.
WARNING:
BE CAREFUL WHEN YOU USE CONSUMABLE MATERIALS. OBEY THE MATERIAL MANUFACTURER'S INSTRUCTIONS AND YOUR LOCAL REGULATIONS.
ZONE: 200
1. Reason for the JobThis task is applicable only for decentralized gaseous-oxygen containers installed in lavatories.
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | 1 | GLOVES - COTTON, LINT-FREE, CLEAN |
| No specific | 1 | WARNING NOTICE(S) |
| 995000-00 | AR | TOOL-MANUAL RELEASE |
| REFERENCE | DESIGNATION |
|---|---|
| (Material No.11CKA1) | Disinfectant and cleaner-Oxygen Mask - - |
| (Material No.14SBA1) | Textile-Lint free Cotton - |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 200 | UPPER HALF FUSELAGE |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 35-00-00-860-001-A | Special Precautions When Working on a Gaseous Oxygen System |
| TASK 35-21-41-000-001-A | Removal of the Emergency Oxygen Containers |
| TASK 35-21-41-400-001-A | Installation of the Emergency Oxygen Containers |
| TASK 35-23-00-710-001-A | Operational Check of Manual Mask Release |
Packing of the Oxygen Mask AssembliesSubtask 35-21-43-860-054-A ** ON A/C NOT FOR ALL
A. Aircraft Maintenance Configuration
(1) Obey the special precautions when you do work on a gaseous oxygen system (Ref. AMM TASK 35-00-00-860-001).
(2) In the cockpit, on the OXYGEN section of the overhead panel 21VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to operate the emergency oxygen system.
4. Procedure(1) Obey the special precautions when you do work on a gaseous oxygen system (Ref. AMM TASK 35-00-00-860-001).
(2) In the cockpit, on the OXYGEN section of the overhead panel 21VU:
(a) Put a WARNING NOTICE(S) in position to tell persons not to operate the emergency oxygen system.
Subtask 35-21-43-550-051-A ** ON A/C NOT FOR ALL
A. Packing of the Oxygen Mask Assemblies
(2) Put the removed emergency oxygen container (9) on the flat and clean surface.
(3) If necessary, use disinfectant to clean the oxygen mask assemblies:
(a) Make the Textile-Lint free Cotton - (Material No.14SBA1) moist with Disinfectant and cleaner-Oxygen Mask - - (Material No.11CKA1) and clean the mask face piece (1), the reservoir bag (3) and the supply hose (4).
(4) Use GLOVES - COTTON, LINT-FREE, CLEAN when you put the oxygen masks into emergency oxygen container.
(5) Put the headband (2) on the reservoir bag (3).
(6) Fold the reservoir bag (3) into thirds.
(7) Fold the reservoir bag (3) into a zig-zag shape and put it into the mask face piece (1).
(8) Make sure that flow indicator is in the middle of the mask face piece (1).
(9) Spirally wind the supply hose (4) counter-clockwise into the inner space of the mask face piece (1).
(10) Make sure that the supply hose (4) is not twisted.
(11) Put the oxygen mask assemblies on the ejector strips (7).
(12) Put the pull flag (6) on related mask face piece (1):
(a) Refer to instruction label (11).
(13) Make sure that the eyelet of release pin (10) points out of the emergency oxygen container (9).
(14) Make sure that the supply hoses (4) do not catch on the other parts in the emergency oxygen container (9).
(15) Make sure that the lanyards (5) are correctly installed and do not catch on the other parts in the emergency oxygen container (9).
(16) Make sure that the work area is clean and clear of tools and other items.
(17) Install the emergency oxygen container (9) (Ref. AMM TASK 35-21-41-400-001).
(18) Make sure that the door (8) is flush with the adjacent panels.
(a) If the door (8) is not flush with the adjacent panels:
1 Hold the door (8) in the closed position and use the 995000-00 TOOL-MANUAL RELEASE to release latch mechanism of the door (8).
3 If necessary, assemble the mask assemblies again in the emergency oxygen container (9).
(19) Make sure that the distance between the door of the emergency oxygen container (9) and adjacent panels is minimum 1 mm (0.0394 in.).
5. Close-upCAUTION:
DO NOT PULL THE MASK LANYARD FROM THE END WITH THE RELEASE PIN. IF YOU PULL ON THIS END OF THE LANYARD, YOU WILL REMOVE THE RELEASE PIN AND START A FLOW OF OXYGEN WHICH CANNOT BE STOPPED.
(1) Remove the related emergency oxygen container (9) (Ref. AMM TASK 35-21-41-000-001). (2) Put the removed emergency oxygen container (9) on the flat and clean surface.
(3) If necessary, use disinfectant to clean the oxygen mask assemblies:
(a) Make the Textile-Lint free Cotton - (Material No.14SBA1) moist with Disinfectant and cleaner-Oxygen Mask - - (Material No.11CKA1) and clean the mask face piece (1), the reservoir bag (3) and the supply hose (4).
(4) Use GLOVES - COTTON, LINT-FREE, CLEAN when you put the oxygen masks into emergency oxygen container.
(5) Put the headband (2) on the reservoir bag (3).
(6) Fold the reservoir bag (3) into thirds.
(7) Fold the reservoir bag (3) into a zig-zag shape and put it into the mask face piece (1).
(8) Make sure that flow indicator is in the middle of the mask face piece (1).
(9) Spirally wind the supply hose (4) counter-clockwise into the inner space of the mask face piece (1).
(10) Make sure that the supply hose (4) is not twisted.
(11) Put the oxygen mask assemblies on the ejector strips (7).
(12) Put the pull flag (6) on related mask face piece (1):
(a) Refer to instruction label (11).
(13) Make sure that the eyelet of release pin (10) points out of the emergency oxygen container (9).
(14) Make sure that the supply hoses (4) do not catch on the other parts in the emergency oxygen container (9).
(15) Make sure that the lanyards (5) are correctly installed and do not catch on the other parts in the emergency oxygen container (9).
(16) Make sure that the work area is clean and clear of tools and other items.
(17) Install the emergency oxygen container (9) (Ref. AMM TASK 35-21-41-400-001).
(18) Make sure that the door (8) is flush with the adjacent panels.
(a) If the door (8) is not flush with the adjacent panels:
1 Hold the door (8) in the closed position and use the 995000-00 TOOL-MANUAL RELEASE to release latch mechanism of the door (8).
NOTE: It is permitted to use alternative tool P/N 995000.
2 Make sure that no part of the oxygen mask assembly is caught between the door (8) and the body of the emergency oxygen container (9). 3 If necessary, assemble the mask assemblies again in the emergency oxygen container (9).
(19) Make sure that the distance between the door of the emergency oxygen container (9) and adjacent panels is minimum 1 mm (0.0394 in.).
Subtask 35-21-43-710-053-A ** ON A/C NOT FOR ALL
A. Operational Check of the Manual Mask Release
(1) Do the operational check of the manual mask release (Ref. AMM TASK 35-23-00-710-001).
Subtask 35-21-43-860-060-A ** ON A/C NOT FOR ALL (1) Do the operational check of the manual mask release (Ref. AMM TASK 35-23-00-710-001).
B. Put the aircraft back to its initial configuration.
(1) In the cockpit, on the OXYGEN section of the overhead panel 21VU:
(a) Remove the warning notice(s).
(1) In the cockpit, on the OXYGEN section of the overhead panel 21VU:
(a) Remove the warning notice(s).