BHT-206L4-MM-1
5-00-00
7 JUN 2013 Rev. 18 Page 157
Export Classification C, ECCN EAR99
5-53. OVERSPEED MAIN ROTOR — 114% OR GREATER
DATA REFERENCE INSPECTION TASK DESCRIPTION
INITIAL
MECH OTHER
DATE: __________________W.O. _____________________
FACILITY: __________________________________________
HELICOPTER S/N: ___________________________________
REGISTRY NO.: _____________________________________
TOTAL TIME:_______________________________________
SIGNATURE:________________________________________
OVERSPEED MAIN ROTOR — 114% OR GREATER
Components removed from a helicopter for
evaluation following an overspeed shall be evaluated
as an interrelated group. Removal records
accompanying each component shall
cross-reference part and serial numbers of other
drive system components removed for evaluation.
For main rotor overspeeds above 107% and up to
114%, visually inspect main rotor blades and tail rotor
blades for skin wrinkles or damage. If damage or
wrinkles are detected, accomplish complete
overspeed inspection.
1. If the main rotor overspeeds in excess of 114% RPM,
proceed with the following:
a. Discarding of the following items is mandatory:
(1) Tension/torsion straps.
(2) Inboard strap fittings and pins.
(3) Latch bolts.
b. Main rotor blades.
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