Removal of the Pylon Fire Detector

TASK 26-12-16-000-805-A
Removal of the Pylon Fire Detector

WARNING: BE CAREFUL WHEN YOU DO WORK ON THE ENGINE PARTS AFTER THE ENGINE SHUTDOWN. USE APPLICABLE THERMAL GLOVES. THE ENGINE PARTS CAN STAY HOT FOR ONE HOUR AFTER SHUTDOWN AND CAN BURN YOU.

WARNING: YOU MUST NOT TOUCH HOT PARTS WITHOUT APPLICABLE GLOVES. HOT PARTS CAN CAUSE AN INJURY.

ZONE: 415
ZONE: 425
FIN: 3WD1
FIN: 3WD2
FIN: 4WD1
FIN: 4WD2

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
415	LOWER PYLON
425	LOWER PYLON

B. Referenced Information

REFERENCE	DESIGNATION
TASK 26-12-16-000-804-A	Removal of the Pylon Fire-Detector Ramp-Assembly
Pylon Fire Detector

3. Job Set-up
Subtask 26-12-16-010-074-A

A. Removal of the Pylon Fire-Detector Ramp-Assembly
(1) Remove the pylon fire-detector ramp-assembly (Ref. AMM TASK 26-12-16-000-804).

4. Procedure
Subtask 26-12-16-020-065-A

A. Removal of the Fire Detector

CAUTION: DO NOT USE ELECTRICAL OR PNEUMATIC TOOLS TO LOOSEN OR TIGHTEN THE QUARTER-TURN FASTENER ON THE FIRE DETECTOR CLAMP. ONLY USE A MANUAL SCREWDRIVER. ELECTRICAL OR PNEUMATIC TOOLS WILL CAUSE THE FASTENER TO TURN TOO MUCH AND POSSIBLY TO BREAK.

CAUTION: DO NOT BEND THE MANIFOLD OF THE SENSING ELEMENT. IF YOU BEND IT, YOU CAN CAUSE DAMAGE TO THE WELDING.

(1) Turn the quarter-turn fasteners (5) by one quarter of a turn and open the clamps (6).
(2) Turn the quarter-turn fasteners (8) by one quarter of a turn and open the clamps (9).
(3) Turn the quarter-turn fasteners (11) by one quarter of a turn and open the clamps (10).
(4) Remove the four screws (1) and washers (2) from each responder unit (3).
(5) Remove the two responder units (3) and the related sensing elements (7) from the rail assembly (4).

[Rev.10 from 2021] 2026.03.31 23:42:56 UTC