TM 1-1520-238-23
13-81
13.26.
AIR DUCT NO. 10 REMOVAL/INSTALLATION
13.26.1. Description
This task covers:
Removal. Cleaning. Inspection. Repair. Installation.
13.26.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Light duty laboratory apron (item 27, App H)
Chemical protective gloves (item 154, App H)
Adjustable air filtering respirator (item 262, App H)
Materials/Parts:
Gasket
Adhesive (item 16, App F)
Personnel Required:
67R
Attack Helicopter Repairer
One person to assist
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1520-238-T
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
13.21
Air duct No. 5 removed
13.26.3. Removal
a. Enter pilot station (para 1.56). Observe all
safety precautions.
b. On pilot aft circuit breaker panel, open ECS
CAB circuit breaker.
c. Remove air duct No. 10 (1) from bulkhead (2)
and duct (3).
(1) Remove six screws (4) and washers (5).
13.26.4. Cleaning
a. Wipe removed and attaching parts with a
clean rag.
13.26.5. Inspection
a. Check ends of ducts, clamps, and brackets
for excessive wear, cracks, or breaks (para
13.1).
b. Check rubber seals at both ends of ducts for
chafing, cuts, or fraying (para 13.1).
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