# SDR QR9R2024111300002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 13, 2024
- Submitted: November 13, 2024
- 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: 14723319702
- Aircraft time: 3,950 hours
- System (JASC): [2210 · Autopilot System](https://openairdocs.org/jasc/2210)
- Part: Actuator
- Part number: 41800878002
- Part serial: 1952
- Condition: Failed
- Location: Trim Sys
- Stage of operation: TX
- 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/QR9R2024111300002

## Discrepancy

AUTOPILOT TEST FAILED NUMEROUS TIMES ON AIRCRAFT RUN-UP. TROUBLESHOOTING DETECTED PITCH TRIM ACTUATOR WAS BAD. REMOVED AND REPLACED TRIM ACTUATOR IAW AMM 67-14-00, 4-1; COMPLETED OK IAW RFM.

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