What was found
AP1 FAILURE IN FLIGHT. TEST FLIGHT EVAL REVEALED AP1 FAILED WITH A FLASHING Y IN ORANGE BLOCK ON PFD, FOLLOWED BY AP2 FAIL WITHIN 30 SECONDS. AFCS SUBS PFTNOTOK MESSAGE WHEN BOTH WENT OFFLINE. REMOVED AND REPLACED YAW TRIM MOTOR.
- Difficulty date
- February 21, 2024
- Submitted
- February 21, 2024
- Operation
- General aviation
- Filed by
- QR9R369D
M1 Support Services - Make and model
- Bolkms BK117C2
- Aircraft serial
- 09721199346
- Aircraft time
- 4,053 hours
- System (JASC)
- 2200 · Auto Flight System
- Part
- Motor
- Part number
- 41800879001
- Part serial
- 698
- Condition
- Failed
- Location
- Yaw Trim
- Stage of operation
- CR
- How discovered
- V
- Nature of condition
- F
- Precautionary procedure
- A
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.