DEFOG SYSTEM MAINTENANCE
DEFOG SYSTEM INSPECTION
This task covers:
13.43.2. Initial Setup
Aircraft mechanics tool kit (item 376, App H)
Attack Helicopter Repairer
Attack Helicopter Repairer/Technical
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