# SDR QR9R20220302001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 2, 2022
- Submitted: March 2, 2022
- Operation: General aviation
- Filed by: [M1 Support Services, repair station QR9R369D](https://openairdocs.org/faa-repair-station/QR9R369D/m1-support-services.md) (OpenAirDocs)
- Make and model: Bolkms BK117C2
- Aircraft serial: 09720969299
- Aircraft time: 3,107 hours
- System (JASC): [2200 · Auto Flight System](https://openairdocs.org/jasc/2200)
- Part: Actuator
- Part number: 4180087901
- Part serial: 918
- Condition: Failed
- Stage of operation: HO
- How discovered: V
- Nature of condition: F
- Precautionary procedure: C
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R20220302001

## Discrepancy

AP TEST FAILED. AP2 AND TRIM WOULD NOT PASS TEST DURING AIRCRAFT RUN-UP. REPLACED  YAW TRIM ACTUATOR IAW AMM 22-10-00, 4-9. MTF MOC COMPLETE IAW RFM & AMM 67-20-00,5-1

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.