TM 1-1520-238-23
13-136
SECTION II.
DEFOG SYSTEM MAINTENANCE
13.43.
DEFOG SYSTEM INSPECTION
13.43.1. Description
This task covers:
Inspection.
13.43.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
References:
TM 1-1500-204-23
TM 55-1500-323-24
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
13.43.3. Inspection
a. Check for wear and damage limits on tubes, hoses, and fittings (TM 1-1500-204-23).
b. Check for chafed, cracked, dented, nicked, and scored tubes. Replace damaged or worn tubing.
c. Check for chafed, deteriorated, cut, frayed, and cracked hoses. Replace damaged or worn hoses.
d. Check for loose, broken, or cracked clamps. Replace damaged clamps.
e. Check general mounting hardware for cracks, gouges, nicks, scratches, chafing, damage, rounded
flats, and stripped or damaged threads. Replace damaged hardware.
f. Check defog shut off valve for loose or missing hardware and evidence of leakage.
g. Check defog shut off valve connector for loose or bent pins, thread damage, and for frayed, cut, or
loose wires (TM 55-1500-323-24).
h. Check defog air mixers for security of attachment and air flow during operation.
END OF TASK
