Removal of the Discharge Head of the Engine Fire-Extinguisher Bottle

TASK 26-21-41-000-002-C
Removal of the Discharge Head of the Engine Fire-Extinguisher Bottle

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: DO NOT REMOVE/INSTALL THE DISCHARGE HEAD WITH THE CARTRIDGE INSTALLED.

WARNING: DO NOT TOUCH THE FRANGIBLE DISC IN THE FIRE EXTINGUISHER BOTTLE. DAMAGE TO THE FRANGIBLE DISC CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.

ZONE: 415
ZONE: 425
FIN: 1WM1
FIN: 1WM2
FIN: 2WM1
FIN: 2WM2

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

REFERENCE	QTY	DESIGNATION
30840002-1	1	CAP-PROTECT,DISCH OUT

B. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
415	LOWER PYLON
425	LOWER PYLON

C. Referenced Information

REFERENCE	DESIGNATION
TASK 26-21-41-000-001-F	Removal of the Engine Fire-Extinguisher Bottle
TASK 26-21-41-000-004-D	Removal of the Cartridge of the Engine Fire-Extinguisher Bottle
Discharge Head - Engine Fire-Extinguisher Bottle

3. Job Set-up
Subtask 26-21-41-020-083-A

A. Removal of the Components
(1) Remove the related engine fire-extinguisher bottle (Ref. AMM TASK 26-21-41-000-001).
(2) Remove the cartridge of the engine fire-extinguisher bottle (Ref. AMM TASK 26-21-41-000-004).

4. Procedure
Subtask 26-21-41-020-082-A

A. Removal of the Discharge Head

WARNING: DO NOT TOUCH THE FRANGIBLE DISC IN THE FIRE EXTINGUISHER BOTTLE. DAMAGE TO THE FRANGIBLE DISC CAN CAUSE UNWANTED DISCHARGE AND INJURY TO PERSONS.

(1) Loosen the nut of the discharge head (4).
(2) Remove the discharge head (4) of the engine fire-extinguisher bottle (1).
(3) Remove and discard the O-ring (2).
(4) If the screen (3) is damaged or clogged, remove and discard it.
(5) Install a 30840002-1 CAP-PROTECT,DISCH OUT on the fire extinguisher bottle (1).

[Rev.10 from 2021] 2026.03.31 23:45:01 UTC