TM 1-1520-238-23
Change 1
12-317
SECTION V.
CANOPY JETTISON SYSTEM MAINTENANCE
12.76.
CANOPY JETTISON SYSTEM INSPECTION
12.76.1. Description
This task covers:
Inspection.
12.76.2. Initial Setup
Tools:
Aircraft mechanic’s tool kit (item 376, App H)
Personnel Required:
67R
Attack Helicopter Repairer
67R3F
Attack Helicopter Repairer/Technical
Inspector
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
12.76.3. Inspection
a. Check initiator handles for illegible placards. Replace placard.
b. Check initiator handles for chafing, nicks, cuts, cracks, twists or loose attachment. None allowed.
c. Check detonation cord for chafing, nicks, cuts, cracks, twists or loose attachment. Replace detonation
cord.
d. Check detonation cord for depressions. If depression is greater than 20 PERCENT. Replace detonation
cord.
e. Check detonation cord retainer at screw holes for cracks.
(1) If crack is THROUGH ENTIRE RETAINER. Replace severance assembly.
(2) If surface is cracked around screw hole, 25 PERCENT of screw holes may be discrepant if scattered
randomly. A maximum of THREE CONSECUTIVE HOLES are allowed.
f. Check all fittings for corrosion, dents, bulges, and loose attachment. Replace fittings (para 1.49).
g. Check lockwire on fittings for breaks, looseness or improper installation. None allowed.
h. Check general hardware for damage or looseness. None allowed.
END OF TASK
