TM 1-1520-238-23
12-81
12.25.
APU AFT FLAME DETECTOR REPLACEMENT - continued
12.25.3. Removal
a. Remove flame detector (1) from panel (2).
(1) Detach connector P79 (3) from receptacle
(A11)J1 (4).
(2) Remove four screws (5), nuts (6), and wash-
ers (7).
(3) Remove and discard detector (1).
12.25.4. Cleaning
a. Wipe removed and attaching parts with a
clean rag.
12.25.5. Inspection
a. Check connector for loose or bent pins (para
12.16).
b. Check removed and attaching parts for corro-
sion (para 1.49).
12.25.6. Installation
a. Install new detector (1) on panel (2).
(1) Position detector (1) on panel (2).
(2) Install four screws (5), washers (7), and nuts
(6).
(3) Attach connector P79 (3) to receptacle
(A11)J1 (4).
b. Inspect (QA).
c. Perform APU fire detection maintenance op-
erational check (TM 1-1520-238-T).
d. Install APU upper center cover (para 15.42).
e. Secure access doors T250L, T250R, T290L,
T290R, and L325 (para 2.2).
END OF TASK
6
7
2
1
4
3
5
M04-978-2
M04-978-3
3
4
1
5
2
7
6
