Service difficulty report · Retaining Nut · Bolkms BK117A3

Difficulty date
November 13, 2006
Submitted
December 4, 2006
Operation
Air carrier
Aircraft
N118NC
Make and model
Bolkms BK117A3
Aircraft serial
7067
Aircraft time
9,044 hours, 30,182 cycles
Engine
Lyc LTS101650B1
Engine time
8,851 hours, 21,353 cycles
Part
Retaining Nut
Part number
408108309
Condition
Loose
Location
Engine
Stage of operation
NR
How discovered
9
Nature of condition
O
Precautionary procedure
O

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

What was found

POWER TURBINE WHEEL RETENTION NUT LOST TORQUE. DISCOVERED BY N2 FLUCTUATION ACCOMPANIED BY A CHIP LIGHT.