TM 55-2940-231-23
1-45. Abnormal Flight Maneuver Inspection - Continued
9. Vibration Test
9.1. Magnetic chip Detector
Vibration monitoring kit, tool no. 171170-0104
Install vibration monitoring kit
in accordance with TM
55-4920-243-15 and operate
the engine on the ground for 30
minutes. Check for vibration in
excess of the limits specified in
para 1-44. action item 5 (Vibra-
tion Limits).
12. Magnetic Chip Detectors
13. Engine Inlet
14. ENGINE/
15. Vibration Test
10. Sudden Stoppage Inspection
The following inspections must be accomplished
whenever the main rotor or tail rotor strikes a sta-
tionary object.
11. Engine Mounts
Inspect magnetic chip detector
for metal particle accumulation.
Inspect the engine mounts for
cracks and security. If stoppage
was severe enough to fracture an
engine mount, send the engine to
overhaul.
Check the magnetic chip detec-
tors for metal particles.
Inspect the engine inlet for for-
eign objects.
Motor the engine and check for
unusual noise.
Install vibration monitoring kit
in accordance with TM
55-4920-243-15 and operate
the engine on the ground for 30
minutes. Check that vibration is
within limits specified in para
1-44, action item 5 (Vibration
Limits).
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