What was found
YAW TRIM ACTUATOR RECEIVED WITH BOLT HOLE MIS-DRILLED, SCRATCHES ON THE CASING IN MULTIPLE LOCATIONS, AND THE SPHERICAL BEARING HAS WEAR AND EXCESSIVE BUILDUP OF MATERIAL IN THE RACE.
- Difficulty date
- July 12, 2023
- Submitted
- July 12, 2023
- Operation
- General aviation
- Filed by
- QR9R369D
M1 Support Services - Make and model
- Bolkms BK117C2
- Aircraft serial
- 18724189803
- Aircraft time
- 3,210 hours
- System (JASC)
- 2200 · Auto Flight System
- Part
- Actuator
- Part number
- 41800879001
- Part serial
- 787
- Condition
- Misrepaired
- Location
- Yaw Damper
- Part time
- 3,132 hours
- Stage of operation
- IN
- How discovered
- V
- Nature of condition
- W
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.