Service difficulty report · Screw · Bolkms BK117C2

Difficulty date
December 11, 2020
Submitted
December 11, 2020
Operation
General aviation
Make and model
Bolkms BK117C2
Aircraft serial
1172223
Part
Screw
Part number
LN938610040B
Condition
Broken
Location
T/R Gearbox
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

A POSTFLIGHT INSPECTION REVEALED TAIL ROTOR GEARBOX SCREW HAD BROKEN.