What was found
DURING FUNCTIONAL CHECK FLIGHT FOR TAIL ROTOR BALANCE AND SLEEVE REPLACEMENT YAW ACTUATOR FAILED. ATTEMPTED SEVERAL RESETS AND AUTO PILOT CHECKS BUT YAW CHANEL WOULD NOT PASS.
- Difficulty date
- July 21, 2021
- Submitted
- July 21, 2021
- Operation
- General aviation
- Filed by
- QR9R369D
M1 Support Services - Aircraft
- N404AE
- Make and model
- Bolkms BK117C2
- Aircraft serial
- 9098
- Aircraft time
- 2,847 hours
- System (JASC)
- 6720 · Tail Rotor Control System
- Part
- Trim Motor
- Part number
- 41800879001
- Part serial
- 584
- Condition
- Unreliable
- Location
- Tail Rotor
- Stage of operation
- IN
- How discovered
- C
- Nature of condition
- L
- Precautionary procedure
- K
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.