TM 1-1520-238-23
13-58
13.19.
AIR DUCT NO. 3 REMOVAL/INSTALLATION
13.19.1. Description
This task covers:
Removal. Cleaning. Inspection. Installation.
13.19.2. Initial Setup
Tools:
Aircraft mechanics tool kit (item 376, App H)
Materials/Parts:
Tape (item 200, App F)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access doors T250L, T250R, T290L,
T290R, and L325 opened; panel L200 re-
moved
13.19.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot aft circuit breaker panel, open ECS
CAB circuit breaker.
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