Service difficulty report · Gearbox · Bolkms BK117C2

Difficulty date
June 23, 2023
Submitted
June 23, 2023
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
14723559731
Aircraft time
3,641 hours
Part
Gearbox
Part number
70BM013110
Part serial
14416
Condition
Failed Insp
Location
Unknown
Part time
3,137 hours
Stage of operation
IN
How discovered
V
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

DURING RUN ON TORQUE CHECK OF MOD 1, AFT L/H THREAD INSERT PULLED OUT WITH BOLT. UNABLE TO REPAIR INSERT IAW EMM 70-35-03-470-801-A01. REPLACED MOD 1 ACCESSORY GEARBOX IAW EMM 72-00-61-900-801-A01.