TM 55-1520-240-T
2-1.5 VIBRATION FREQUENCY TOO RAPID TO COUNT, VIBRATION FELT IN STRUCTURE (6/REV)
FAULT ISOLATION PROCEDURE
2-1.5
INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Mechanic’s Tool Kit,
NSN 5180-00-323-4692
Materials:
None
Personnel Required:
Medium Helicopter Repairer
Army Rotary Wing Aviator (2)
Technical lnspector
References:
TM 55-1520-240-23
TM 55-1520-240-10
Equipment Condition:
TM 55-1520-240-23:
Battery Connected
Electrical Power On
Hydraulic Power On
TM 55-1520-240-10:
Rotors Turning
2-12
Change 5
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