Removal of the Emergency Oxygen Containers

TASK 35-21-41-000-001-A
Removal of the Emergency Oxygen Containers

WARNING: MAKE SURE THAT YOU OBEY THE MANUFACTURER'S INSTRUCTIONS AND NATIONAL HAZARDOUS MATERIAL REGULATIONS WHEN YOU MOVE OR KEEP THIS EQUIPMENT IN STORAGE:

CHEMICAL OXYGEN GENERATORS
PROTECTIVE BREATHING EQUIPMENT
FIXED AND PORTABLE OXYGEN CYLINDERS.

SPECIAL PRECAUTIONS ARE NECESSARY FOR THIS EQUIPMENT.

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.

CAUTION: PUT DRY AND CLEAN METAL OR PLASTIC PLUGS ON ALL PIPES OR UNITS THAT YOU REMOVE TEMPORARILY. THEN PUT EACH PIPE OR UNIT IN A SEALED VINYL BAG. IF YOU DO NOT OBEY THESE INSTRUCTIONS, CONTAMINATION OF THE OXYGEN SYSTEM CAN OCCUR.

CAUTION: BEFORE YOU MOVE AN OXYGEN GENERATOR (WITH OR WITHOUT AN OXYGEN CONTAINER), INSTALL A SAFETY RING OR PIN AND WARNING FLAG ON ITS IGNITION ACTUATOR. YOU MUST DO THIS:

BEFORE YOU MOVE IT TO A DIFFERENT LOCATION
BEFORE YOU PUT IT INTO STORAGE
BEFORE YOU PREPARE IT FOR TRANSPORT.

BEFORE YOU CLOSE THE DOOR OF THE OXYGEN CONTAINER, ATTACH ONE END OF THE WARNING FLAG TO THE DOOR'S OUTER SURFACE. IF THE SAFETY RING OR PIN AND WARNING FLAG IS NOT CORRECTLY INSTALLED, THE OXYGEN GENERATOR CAN START ACCIDENTALLY AND CAUSE DAMAGE.

ZONE: 200
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1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	AR	CAP - BLANKING
No specific	2	ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	AR	STEPLADDER 1.0 M (3.3 FT)
No specific	AR	WARNING NOTICE(S)

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
200	UPPER HALF FUSELAGE
261BC
261KW
221HW
251AC, 251KC
261VW
262BC
222HW, 262KW
221SW, 222SW
262VW
251JC

C. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
4	SAFETY RING WITH WARNING FLAG	AIPC 35-21-41-99-010
4	SAFETY PIN WITH WARNING FLAG	AIPC 35-21-41-99-020
4	SAFETY RING WITH WARNING FLAG	AIPC 35-21-89-99-010
4	SAFETY PIN WITH WARNING FLAG	AIPC 35-21-89-99-020
3	RING	AIPC 35-22-54-99-010
3	RING	AIPC 35-22-89-99-010

D. Referenced Information

REFERENCE	DESIGNATION
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 25-23-41-000-001-A	Removal of the Ceiling Panels
TASK 25-23-42-000-002-A	Removal of the Ceiling Panels - Aft Utility Area
TASK 25-23-45-000-002-A	Removal of the Door Frame Linings from the Right Forward Passenger/Crew Door
TASK 25-23-45-000-003-A	Removal of the Door Frame Linings from the Left Aft Passenger/Crew Door
TASK 25-23-45-000-004-A	Removal of the Door Frame Linings from the Right Aft Passenger/Crew Door
TASK 25-23-45-000-005-A	Removal of the Door Frame Linings from the Left Forward Passenger/Crew Door
TASK 35-00-00-860-001-A	Special Precautions When Working on a Gaseous Oxygen System
TASK 35-21-42-000-001-A	Removal of the Emergency Oxygen Generators
Installation Position of the Emergency Oxygen Container
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers ** ON A/C NOT FOR ALL
Emergency Oxygen Containers - Removal of the Safety Ring
Emergency Oxygen Containers with Cylinder Assembly - Removal of the Safety Ring ** ON A/C NOT FOR ALL

3. Job Set-up
Subtask 35-21-41-861-050-A

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) Energize the aircraft electrical circuits
(Ref. AMM TASK 24-41-00-861-002).
(3) In the cockpit, on the OXYGEN section of overhead panel 21VU:
(a) Put a(the) WARNING NOTICE(S) in position to tell persons not to operate the emergency oxygen system.

Subtask 35-21-41-865-050-A

B. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
49VU	OXYGEN/PASSENGER/ACTUATION	7WR	HA08
49VU	OXYGEN/PASSENGER/ACTUATION	6WR	HA07
49VU	OXYGEN/PASSENGER/ACTUATION	5WR	HA06
49VU	OXYGEN/PASSENGER/ACTUATION	4WR	HA05
49VU	OXYGEN/PASSENGER/CTL AND WARN	3WR	HA04
49VU	OXYGEN/PASSENGER/CTL AND WARN	2WR	HA03
49VU	OXYGEN/PASSENGER/CTL AND WARN	1WR	HA02

Subtask 35-21-41-010-050-G ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221HW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 261KW (Ref. AMM TASK 25-23-45-000-003).
(3) Remove ceiling panel 261BC (Ref. AMM TASK 25-23-42-000-002).

Subtask 35-21-41-010-050-L ** ON A/C NOT FOR ALL

Subtask 35-21-41-010-050-Y ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221HW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 222HW (Ref. AMM TASK 25-23-45-000-002).
(3) Remove door-frame lining panel 261KW (Ref. AMM TASK 25-23-45-000-003).
(4) Remove door-frame lining panel 262KW (Ref. AMM TASK 25-23-45-000-004).
(5) Remove ceiling panels 251AC and 251KC (Ref. AMM TASK 25-23-41-000-001).
(6) Remove ceiling panels 261BC and 262BC (Ref. AMM TASK 25-23-42-000-002).

Subtask 35-21-41-010-050-Z ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221SW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 222SW (Ref. AMM TASK 25-23-45-000-002).
(3) Remove door-frame lining panel 262VW (Ref. AMM TASK 25-23-45-000-004).
(4) Remove ceiling panels 251AC and 251KC (Ref. AMM TASK 25-23-41-000-001).
(5) Remove ceiling panels 261BC and 262BC (Ref. AMM TASK 25-23-42-000-002).

Subtask 35-21-41-010-050-AT ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221SW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 222SW (Ref. AMM TASK 25-23-45-000-002).
(3) Remove ceiling panel 261BC (Ref. AMM TASK 25-23-42-000-002).
(4) Remove ceiling panel 251JC (Ref. AMM TASK 25-23-41-000-001).

Subtask 35-21-41-010-050-AY ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221SW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 222SW (Ref. AMM TASK 25-23-45-000-002).
(3) Remove door-frame lining panel 261VW (Ref. AMM TASK 25-23-45-000-003).
(4) Remove door-frame lining panel 262VW (Ref. AMM TASK 25-23-45-000-004).

Subtask 35-21-41-010-050-AZ ** ON A/C NOT FOR ALL

Subtask 35-21-41-010-050-BD ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221SW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 222SW (Ref. AMM TASK 25-23-45-000-002).
(3) Remove door-frame lining panel 262VW (Ref. AMM TASK 25-23-45-000-004).
(4) Remove ceiling panels 261BC and 262BC (Ref. AMM TASK 25-23-42-000-002).
(5) Remove ceiling panel 251JC (Ref. AMM TASK 25-23-41-000-001).

Subtask 35-21-41-010-050-BN ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221SW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 222SW (Ref. AMM TASK 25-23-45-000-002).
(3) Remove ceiling panels 261BC and 262BC (Ref. AMM TASK 25-23-42-000-002).
(4) Remove ceiling panel 251JC (Ref. AMM TASK 25-23-41-000-001).

Subtask 35-21-41-010-050-DA ** ON A/C NOT FOR ALL

C. Get Access
(1) Remove door-frame lining panel 221SW (Ref. AMM TASK 25-23-45-000-005).
(2) Remove door-frame lining panel 222SW (Ref. AMM TASK 25-23-45-000-002).
(3) Remove door-frame lining panel 261VW (Ref. AMM TASK 25-23-45-000-003).
(4) Remove door-frame lining panel 262VW (Ref. AMM TASK 25-23-45-000-004).
(5) Remove ceiling panel 261BC (Ref. AMM TASK 25-23-42-000-002).

4. Procedure
Subtask 35-21-41-020-050-A ** ON A/C NOT FOR ALL

A. Removal of the Emergency Oxygen Containers in the Passenger Service Channels and the service channel of the aft utility area.

NOTE: The removal procedure is the same for all the emergency oxygen containers installed in the service channels.

(1) Remove the hose sections (1) from the rails (2).

CAUTION: MAKE SURE THAT YOU SUPPORT THE EMERGENCY OXYGEN CONTAINER WHEN YOU LOWER IT. IF IT FALLS, DAMAGE CAN OCCUR TO THE CONTAINER AND TO THE ADJACENT EQUIPMENT.

(2) Disengage and lower one side of the emergency oxygen container (3).
(3) Disconnection of the electrical connector(s):

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

Subtask 35-21-41-020-050-B ** ON A/C NOT FOR ALL

A. Removal of the Emergency Oxygen Containers in the Passenger Service Channels

Installation Position of the Emergency Oxygen Container ** ON A/C NOT FOR ALL

NOTE: The removal procedure is the same for all the emergency oxygen containers installed in the service channels.

(1) Lower the inboard side of the emergency oxygen container:
(a) Remove the hose sections (1) from the rails (2).

CAUTION: MAKE SURE THAT YOU SUPPORT THE EMERGENCY OXYGEN CONTAINER WHEN YOU LOWER IT. IF IT FALLS, DAMAGE CAN OCCUR TO THE CONTAINER AND TO THE ADJACENT EQUIPMENT.

(b) Disengage and lower the inboard side of the emergency oxygen container (3).
(2) Disconnect the electrical connector(s):

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(a) Disconnect the electrical connectors (4) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(3) Remove the emergency oxygen container (3) from the rails (2).
(4) If necessary, remove the clamping block (8):
(a) Loosen the screw (9).
(b) Remove the clamping block (8).

Subtask 35-21-41-020-051-A ** ON A/C NOT FOR ALL

B. Removal of the Emergency Oxygen Container(s) in the Passenger/Crew Door Frame(s)

NOTE: The removal procedure is the same for all the emergency oxygen containers installed in the passenger/crew door frames.

(1) Disconnect the electrical connector(s):

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(a) Disconnect the electrical connectors (15) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(2) Remove the screws (17) and the washers (16).
(3) Loosen the screws (18).
(4) Move the supports (12) and disengage the emergency oxygen container (13) from the support assembly (14).
(5) Remove the emergency oxygen container (13).

Subtask 35-21-41-020-051-D ** ON A/C NOT FOR ALL

B. Removal of the Emergency Oxygen Container(s) in the Passenger/Crew Door Frame(s)

NOTE: The removal procedure is the same for all the emergency oxygen containers installed in the passenger/crew door frames.

(1) Disconnection of the electrical connector(s):

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(a) Disconnect the electrical connectors (8) with the insertion/removal tool M15.570-20.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(2) Remove the screws (10) and the washers (9).
(3) Loosen the screws (11).
(4) Move the support (5) and disengage the oxygen container (6) from the support assembly (7).
(5) Remove the oxygen container (6).

Subtask 35-21-41-020-052-I ** ON A/C NOT FOR ALL

C. Removal of the Emergency Oxygen Container in the Lavatories
(1) In lavatory A:
(a) Remove the screws (19) from the nut-clips (20) at the emergency-oxygen-container cover color-panel (21).
(b) Remove the emergency-oxygen-container cover color-panel (21).
(2) For lavatories D, E and H:
(a) Put a STEPLADDER 1.0 M (3.3 FT) in position in front of the applicable lavatory.
(3) For all the lavatories:

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(a) Disconnect the electrical connectors (7) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(c) Remove the screws (5), the washers (6) and remove the emergency oxygen container (11).

Subtask 35-21-41-020-052-J ** ON A/C NOT FOR ALL

C. Removal of the Emergency Oxygen Container in the Lavatories
(1) In the lavatory A only:
(a) Remove the screws (19) and the washers (20) at the emergency oxygen container cover color panel (21).
(b) Remove the emergency oxygen container cover color panel (21).
(2) For the remaining lavatories:
(a) Put a STEPLADDER 1.0 M (3.3 FT) in front of the lavatories.
(3) For all of the lavatories:
(a) Disconnect the electrical connector(s):

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

1 Disconnect the electrical connectors (4) and/or (7) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
2 Put CAP - BLANKING on the disconnected electrical connectors.
(b) Remove the screws (5), the washers (6) and remove the oxygen container (11).

Subtask 35-21-41-020-052-AF ** ON A/C NOT FOR ALL

C. Removal of the Emergency Oxygen Container in the Lavatories
(1) In the lavatory A only:
(a) Remove the screws (17) and the washers (16) at the emergency-oxygen container-cover color-panel (18).
(b) Remove the emergency-oxygen container-cover color-panel (18).
(2) For all the other lavatories:
(a) Put a STEPLADDER 1.0 M (3.3 FT) in front of the lavatories.
(3) For all of the lavatories:

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(a) Disconnect the electrical connector (14) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(c) Remove the screws (13), the washers (12) and remove the oxygen container (15).

Subtask 35-21-41-020-052-AI ** ON A/C NOT FOR ALL

C. Removal of the Emergency Oxygen Container in the Lavatories
(1) In the lavatory A:
(a) Remove the screws (19) from the nut-clips (20) at the emergency-oxygen container-cover color-panel (21).
(b) Remove the emergency-oxygen container-cover color-panel (21).
(2) For the remaining lavatories:
(a) Put a STEPLADDER 1.0 M (3.3 FT) in front of the lavatories.
(3) For all of the lavatories:

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

Subtask 35-21-41-020-052-AK ** ON A/C NOT FOR ALL

C. Removal of the Emergency Oxygen Container in the Lavatories
(1) In the lavatory A:
(a) Remove the screws (19) from the nut-clips (20) at the emergency-oxygen-container cover color-panel (21).
(b) Remove the emergency-oxygen-container cover color-panel (21).
(2) For all smart lavatories (DS, ES, FS, GS, HS, DC, EC, LC):
(a) Remove the screws (38) and the washers (39).
(b) Carefully lower the panel (40).
(3) For other lavatories, if applicable:
(a) Put a STEPLADDER 1.0 M (3.3 FT) in front of the lavatories.
(4) For all of the lavatories:

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

Subtask 35-21-41-020-056-A ** ON A/C NOT FOR ALL

D. Removal of the Emergency Oxygen Container in the Service Channel of the Aft Utility Area
(1) Remove the hose sections (33) from the rails (30).

CAUTION: MAKE SURE THAT YOU SUPPORT THE EMERGENCY OXYGEN CONTAINER WHEN YOU LOWER IT. IF IT FALLS, DAMAGE CAN OCCUR TO THE CONTAINER AND TO THE ADJACENT EQUIPMENT.

(2) Disengage and lower one side of the panel (36).
(3) Disconnect the electrical connector(s):

CAUTION: MAKE SURE THAT THE ELECTRICAL CONNECTORS ARE CLEAN BEFORE YOU DISCONNECT OR CONNECT THEM. CONTAMINATION ON THE ELECTRICAL CONNECTORS CAN CAUSE DAMAGE TO EQUIPMENT.

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(a) Disconnect the electrical connectors (37) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
(b) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(4) Disengage and remove the panel (36) from the rails (30).
(5) Remove the screws (32) and the washers (31) and (34).
(6) Remove the emergency oxygen container (35) from the panel (36).

Subtask 35-21-41-020-056-C ** ON A/C NOT FOR ALL

D. Removal of the Emergency Oxygen Container in the Service Channel of the Aft Utility Area
(1) Remove the hose sections (21) from the rails (20).
(2) Disengage and lower one side of the panel (26).
(3) Disconnect the electrical connectors:

CAUTION: MAKE MATCH MARKS ON ALL THE ELECTRICAL WIRES BEFORE YOU DISCONNECT THEM. INCORRECT CONNECTION OF WIRES WILL CAUSE DAMAGE TO EQUIPMENT.

(a) Disconnect the electrical connectors (27) with the ELEC CONTACTS INSERTION EXTRACTION TOOL M15570-20.
(4) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
(5) Disengage and remove the panel (26) from the rail (20).
(6) Remove the screws (23), the washers (22) and (24).
(7) Remove the emergency oxygen container (25) from the panel (26).

5. Close-up
Subtask 35-21-41-481-050-A

WARNING: UNEXPENDED OXYGEN GENERATORS CONTAIN A PYROTECHNIC- ACTIVATED IGNITION DEVICE. ENSURE THAT RELEASE PIN/OR SAFETY PIN WITH WARNING FLAG IS INSTALLED DURING HANDLING AND TRANSPORTATION. IF RELEASE PIN AND/OR SAFETY PIN IS PULLED AND GENERATOR FIRES, IMMEDIATELY PLACE ON A NON-COMBUSTIBLE SURFACE. CONTAINER SURFACE TEMPERATURES MAY EXCEED 450F. ALLOW 2 TO 3 HOURS COOLING TIME BEFORE HANDLING CONTAINERS.

CAUTION: AT ALL TIMES, AVOID AN UNINTENTIONAL PULL ON THE LANYARDS OR PULL PIN OF AN UNUSED GENERATOR. REMOVAL OF THE PULL PIN FROM THE GENERATOR WILL START THE FLOW OF OXYGEN WHICH CANNOT BE STOPPED UNTIL THE CONTENTS ARE DEPLETED. DO NOT TOUCH THE GENERATOR WITH UNPROTECTED HANDS, AS IT IS HOT ENOUGH TO BURN THE SKIN.

CAUTION: DO NOT USE TOO MUCH FORCE TO CLOSE THE EMERGENCY OXYGEN CONTAINER. IF YOU USE TOO MUCH FORCE, YOU CAN CAUSE DAMAGE TO THE LATCH MECHANISM. IF THE LATCH MECHANISM DOES NOT ENGAGE EASILY, MAKE SURE THAT THE EQUIPMENT IN THE EMERGENCY OXYGEN CONTAINER IS CORRECTLY INSTALLED.

A. Preparation for Transportation or Stowage of the Emergency Oxygen Container(s)

Emergency Oxygen Containers - Removal of the Safety Ring

NOTE: This procedure is not necessary for an emergency oxygen container with a used up oxygen generator.

(1) To move the generator (2) or the emergency oxygen container (1) with generator, install a AIPC 35-21-41-99-010 SAFETY RING WITH WARNING FLAG (4) or AIPC 35-21-89-99-010 SAFETY RING WITH WARNING FLAG (4) / AIPC 35-21-41-99-020 SAFETY PIN WITH WARNING FLAG (4) or AIPC 35-21-89-99-020 SAFETY PIN WITH WARNING FLAG (4) into the hole of the ignition actuator on the generator (2) (Ref. AMM TASK 35-21-42-000-001).
(2) Before you close the door of the emergency oxygen container (1) , attach one end of the warning flag to the door's outer surface.

Subtask 35-21-41-481-051-A ** ON A/C NOT FOR ALL

CAUTION: 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.

B. Preparation for Transportation or Stowage of the Emergency Oxygen Container(s) with the Cylinder Assembly

Emergency Oxygen Containers with Cylinder Assembly - Removal of the Safety Ring ** ON A/C NOT FOR ALL

NOTE: This procedure is not necessary for an emergency oxygen container with an empty oxygen cylinder.

(1) Before you transport the emergency oxygen container (1), install a AIPC 35-22-54-99-010 RING (3) or a AIPC 35-22-89-99-010 RING (3) into the actuator housing of the oxygen cylinder (2).
(2) Before you close the door of the emergency oxygen container (1), attach one end of the warning flag to the outer surface of the door.

[Rev.10 from 2021] 2026.04.01 06:04:01 UTC