TM 1-1520-238-23
8-113
SECTION IV. MISCELLANEOUS INSTRUMENTS MAINTENANCE
8.43.
MISCELLANEOUS INSTRUMENTS INSPECTION
8.43.1. Description
This task covers:
Inspection.
8.43.2. Initial Setup
Personnel Required:
68X
Armament/Electrical System Repairer
Equipment Conditions:
Ref
Condition
1.57
Helicopter safed
2.2
Access doors opened and covers, panels,
and fairings removed as necessary
8.43.3. Inspection
a. Check miscellaneous instruments and instrument panel mounting areas for dents, nicks, and cracks.
None allowed.
b. Check front panels of instruments for dents, nicks, and cracks. None allowed.
c. Check instruments and their front panels, covers, indicators, switches, and knobs for loose installa-
tion. None allowed.
d. Check instruments for loose or missing hardware. None allowed.
e. Check indicator and instrument panel screw holes for stripped or damaged threads. Acceptable thread
damage cannot exceed 50 percent of one thread.
f. Check indicators on instrument faces for wear and damage. None allowed.
g. Check instrument scales for wear, readability, distortion, and discoloration. None allowed.
h. Check electrical connectors for loose installation. Inspect lockwiring for loose or broken wires. None
allowed.
i. Check instruments for fogging and moisture. None allowed.
j. Secure opened doors; install removed covers, panels and fairings (para 2.2).
END OF TASK
