SDR 2017F00005

Service difficulty report · Nut · Bell 407

Difficulty date
December 8, 2016
Submitted
December 9, 2016
Operation
General aviation
Aircraft
N293AM
Make and model
Bell 407
Aircraft serial
54617
Aircraft time
355 hours, 1,212 cycles
Part
Nut
Part number
407010106103
Part serial
TI1185
Condition
Stuck
Location
M/R Mast
Part time
355 hours, 1,212 cycles
Stage of operation
IN
How discovered
O
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

MAIN ROTOR MAST NUT FOUND SEIZED TO MAST. ULTIMATELY REQUIRED APPROX. 2000 FT-LBS TORQUE TO REMOVE.

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