DOC AIRBUS | AMM A320FRemoval of the Engine Fire-Extinguisher Bottle
TASK 26-21-41-000-001-E
Removal of the Engine Fire-Extinguisher Bottle
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
B. Work Zones and Access Panels
C. Referenced Information
3. Job Set-up
Subtask 26-21-41-861-050-A ** ON A/C NOT FOR ALL Subtask 26-21-41-875-053-B ** ON A/C NOT FOR ALL
Subtask 26-21-41-020-068-A ** ON A/C NOT FOR ALL
[Rev.10 from 2021]
2026.03.31 23:44:47 UTC
Removal of the Engine Fire-Extinguisher Bottle
WARNING:
THE CARTRIDGE IS AN EXPLOSIVE DEVICE. REMOVE IT BEFORE YOU DISASSEMBLE THE FIRE EXTINGUISHER BOTTLE.
TO PREVENT INJURY TO THE PERSONNEL BECAUSE OF THE EXPLOSION OF THE CARTRIDGE IF IT HAS NOT BEEN FIRED:
- INSTALL A SHUNT DEVICE.
- THIS WILL SHUNT THE PINS TOGETHER ON THE CARTRIDGE BEFORE ITS REMOVAL.
WARNING:
BE VERY CAREFUL WHEN YOU MOVE A FULL FIRE EXTINGUISHER BOTTLE. A SUDDEN OR HEAVY SHOCK TO A FULL BOTTLE CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.
WARNING:
IF YOU REMOVE THE FIRE EXTINGUISHER BOTTLES IN A CLOSED HANGAR, MAKE SURE THAT THERE IS A FLOW OF NEW AIR IN THE HANGAR.
ZONE: 415
ZONE: 425
FIN: 6WE1 ** ON A/C NOT FOR ALL
FIN: 6WE2 ** ON A/C NOT FOR ALL
FIN: 8WE1 ** ON A/C NOT FOR ALL
FIN: 8WE2 ** ON A/C NOT FOR ALL
1. Reason for the JobZONE: 425
FIN: 6WE1 ** ON A/C NOT FOR ALL
FIN: 6WE2 ** ON A/C NOT FOR ALL
FIN: 8WE1 ** ON A/C NOT FOR ALL
FIN: 8WE2 ** ON A/C NOT FOR ALL
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment
| REFERENCE | QTY | DESIGNATION |
|---|---|---|
| No specific | AR | ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE |
| No specific | AR | CAP - BLANKING |
| No specific | AR | PLUG - BLANKING |
| No specific | AR | SAFETY CLIP - CIRCUIT BREAKER |
| No specific | AR | WARNING NOTICE(S) |
| 53100141-1 | 1 | PLUG, SHUNT |
| OR | OR | |
| M83723-60-18AN | 1 | CAP, PROTECTIVE |
| ZONE/ACCESS | ZONE DESCRIPTION |
|---|---|
| 415 | LOWER PYLON |
| 425 | LOWER PYLON |
| FOR [6WE1] (BOTTLE 1-FIRE EXTING, ENG 1) | |
| 415BL | |
| FOR [6WE2] (BOTTLE 1-FIRE EXTING, ENG 2) | |
| 425BL | |
| FOR [8WE1] (BOTTLE 2-FIRE EXTING, ENG 1) | |
| 415CR | |
| FOR [8WE2] (BOTTLE 2-FIRE EXTING, ENG 2) | |
| 425CR | |
| REFERENCE | DESIGNATION |
|---|---|
| TASK 20-15-00-910-001-A | Handling Precautions for Electrostatic Discharge Sensitive Devices |
| 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 26-21-41-000-002-B | Removal of the Discharge Head of the Engine Fire-Extinguisher Bottle |
| TASK 26-21-41-000-004-C | Removal of the Cartridge of the Engine Fire-Extinguisher Bottle |
| TASK 54-51-21-000-802-A | Removal of the Pylon Lateral Access-Doors |
Access Door SupportsSubtask 26-21-41-861-050-A ** ON A/C NOT FOR ALL Subtask 26-21-41-875-053-B ** ON A/C NOT FOR ALL
B. Open, safety and tag this(these) circuit breaker(s):
Subtask 26-21-41-941-053-A ** ON A/C NOT FOR ALL | PANEL | DESIGNATION | FIN | LOCATION |
|---|---|---|---|
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 6WE2 (BOTTLE 1FIRE EXTING, ENG 2) FOR FIN: 6WE1 (BOTTLE 1FIRE EXTING, ENG 1) | |||
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A | 1WE1 | Q43 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B | 2WE2 | Q42 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/A | 1WE1 | Q42 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL1/SQUIB/B | 2WE2 | Q41 |
| ** ON A/C NOT FOR ALL | |||
| FOR FIN: 8WE2 (BOTTLE 2FIRE EXTING, ENG 2) FOR FIN: 8WE1 (BOTTLE 2FIRE EXTING, ENG 1) | |||
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B | 2WE1 | Q44 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A | 1WE2 | Q41 |
| ** ON A/C NOT FOR ALL | |||
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/B | 2WE1 | Q43 |
| 121VU | ENGINE/ENG1 AND 2 FIRE EXTIG/BTL2/SQUIB/A | 1WE2 | Q40 |
C. Safety Precautions
(1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE/CRANK/NORM/IGN/START selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On the ENG section of overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
Subtask 26-21-41-010-060-A ** ON A/C NOT FOR ALL (1) On the center pedestal, on ENG panel 115VU:
(a) Make sure that the ENG/MODE/CRANK/NORM/IGN/START selector switch is in the NORM position.
(b) Make sure that the ENG/MASTER 1(2) control switch was in the OFF position not less than five minutes before you do this procedure.
(c) Put WARNING NOTICE(S) in position to tell persons not to operate the ENG/MODE selector switch and the ENG/MASTER 1(2) control switch.
(2) Make sure that the engine 1(2) shutdown occurred not less than five minutes before you do this procedure.
(3) On the ENG section of overhead maintenance panel 50VU:
(a) Make sure that the ON legend of the ENG/FADEC GND PWR/1(2) pushbutton switch is off.
(b) Put a WARNING NOTICE(S) in position to tell persons not to energize FADEC 1(2).
D. Get Access
(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the pylon.
(2) Remove the pylon lateral access-doors (Ref. AMM TASK 54-51-21-000-802):
(a) FOR [6WE1] (BOTTLE 1-FIRE EXTING, ENG 1)
(b) FOR [8WE1] (BOTTLE 2-FIRE EXTING, ENG 1)
(c) FOR [6WE2] (BOTTLE 1-FIRE EXTING, ENG 2)
(d) FOR [8WE2] (BOTTLE 2-FIRE EXTING, ENG 2)
(3) Remove the access door supports:
(a) Remove the screws (1).
(b) Remove the access door supports (2) from the structure (3).
4. Procedure(1) Put an ACCESS PLATFORM 2M (6 FT) - ADJUSTABLE in position below the pylon.
(2) Remove the pylon lateral access-doors (Ref. AMM TASK 54-51-21-000-802):
(a) FOR [6WE1] (BOTTLE 1-FIRE EXTING, ENG 1)
(b) FOR [8WE1] (BOTTLE 2-FIRE EXTING, ENG 1)
(c) FOR [6WE2] (BOTTLE 1-FIRE EXTING, ENG 2)
(d) FOR [8WE2] (BOTTLE 2-FIRE EXTING, ENG 2)
(3) Remove the access door supports:
(a) Remove the screws (1).
(b) Remove the access door supports (2) from the structure (3).
Subtask 26-21-41-020-068-A ** ON A/C NOT FOR ALL
A. Disconnect the Electrical Connector
(2) Disconnect the electrical connector (6) from the pressure switch (7).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
Subtask 26-21-41-481-053-A ** ON A/C NOT FOR ALL WARNING:
DO NOT TOUCH THE CARTRIDGE BEFORE YOU DO THE PROCEDURE APPLICABLE TO DEVICES THAT ARE SENSITIVE TO ELECTROSTATIC DISCHARGE. ELECTROSTATIC DISCHARGE CAN CAUSE THE FIRE EXTINGUISHER BOTTLE TO RELEASE ITS CONTENTS SUDDENLY AND CAUSE INJURY TO PERSONS.
(1) Before you touch the cartridge, do the procedure for devices that are sensitive to electrostatic discharge (Ref. AMM TASK 20-15-00-910-001). (2) Disconnect the electrical connector (6) from the pressure switch (7).
(3) Put the CAP-BLANKING on each disconnected electrical connector and receptacle.
B. Installation of the Safety Tool
(2) Put a 53100141-1 PLUG, SHUNTM83723-60-18AN CAP, PROTECTIVE on the cartridge (11).
Subtask 26-21-41-020-069-A ** ON A/C NOT FOR ALL WARNING:
BEFORE YOU TOUCH THE POWER DEVICE CARTRIDGE, MAKE SURE THAT YOU ARE GROUNDED AND THAT YOU INSTALL A SHUNT DEVICE ON IT. USE A CAP OR PLUG AS SHUNT DEVICE (THE CAP OR PLUG WILL SHUNT THE PINS TOGETHER ON THE CARTRIDGE). DO NOT USE A FOIL SHUNT.
IF YOU TOUCH A POWER DEVICE CARTRIDGE THAT DOES NOT HAVE A SHUNT DEVICE INSTALLED, AN EXPLOSION CAN OCCUR AND CAUSE INJURIES TO YOU.
(1) Disconnect the electrical connector (10) from the cartridge (11). (2) Put a 53100141-1 PLUG, SHUNTM83723-60-18AN CAP, PROTECTIVE on the cartridge (11).
C. Removal of the Fire Extinguisher Bottle
(1) Loosen the nut of the coupling (2) to disconnect the line (1) from the discharge head (12).
(2) Remove and discard the seal (13).
(3) Put the PLUG-BLANKING in each disconnected line end.
(4) Remove the four bolts (4) and the four washers (3).
(5) Remove the bottle (5):
Subtask 26-21-41-020-070-A ** ON A/C NOT FOR ALL (1) Loosen the nut of the coupling (2) to disconnect the line (1) from the discharge head (12).
(2) Remove and discard the seal (13).
(3) Put the PLUG-BLANKING in each disconnected line end.
(4) Remove the four bolts (4) and the four washers (3).
(5) Remove the bottle (5):
WARNING:
BE VERY CAREFUL WHEN YOU MOVE A FULL FIRE EXTINGUISHER BOTTLE. A SUDDEN OR HEAVY SHOCK TO A FULL BOTTLE CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.
(a) Remove the bottle (5) and put it on an applicable support. D. Removal of the Cartridge
(1) Remove the cartridge from the discharge head of the engine fire-extinguisher bottle (Ref. AMM TASK 26-21-41-000-004).
Subtask 26-21-41-020-071-A ** ON A/C NOT FOR ALL (1) Remove the cartridge from the discharge head of the engine fire-extinguisher bottle (Ref. AMM TASK 26-21-41-000-004).
E. Removal of the Discharge Head
(1) Remove the discharge head from the engine fire-extinguisher bottle (Ref. AMM TASK 26-21-41-000-002).
(1) Remove the discharge head from the engine fire-extinguisher bottle (Ref. AMM TASK 26-21-41-000-002).