Service difficulty report · Actuator · Bolkms BK117C2

Difficulty date
August 8, 2023
Submitted
August 8, 2023
Operation
General aviation
Filed by
QR9R369D
M1 Support Services
Make and model
Bolkms BK117C2
Aircraft serial
15723829762
Aircraft time
3,451 hours
Part
Actuator
Part number
41800879001
Part serial
3003
Condition
Ratcheting
Location
Unknown
Stage of operation
HO
How discovered
V
Nature of condition
F
Precautionary procedure
C

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

What was found

DURING RUN-UP, RECEIVED YAW ACTUATOR FAIL. TROUBLESHOOTING FOUND YAW TRIM ACTUATOR ARM TO BE BINDING AND RATCHETING, WITH OR WITHOUT FTR ACTIVATED. REMOVED AND REPLACED YAW TRIM ACTUATOR, T/F SUCCESSFULLY COMPLETED.