TM 55-1520-240-23-10
15-9
INSTALL APU EXHAUST DUCT CLOSURE
15-9
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit, NSN 5180-00-323-4692
Workstand
Materials:
None
Personnel Required:
Medium Helicopter Repairer
Inspector
References:
TM 55-1520-240-23P
1.
Install gasket (1) on closure (2).
2.
From outside helicopter, install closure (2) over
exhaust duct (3).
3.
From inside helicopter, install four nuts (4) and
washers (5) on screws (6).
4.
Check for 0.09 inch minimum gap between duct
(3) and tailcone closure (2).
FOLLOW-ON MAINTENANCE:
Install APU drip pan (Task 2-3).
Close ramp work platform (Task 2-2).
Close cargo ramp (Task 2-2).
END OF TASK
15-42
