# SDR QR9R2025051400001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 14, 2025
- Submitted: May 14, 2025
- Operation: General aviation
- Filed by: [M1 Support Services, repair station QR9R369D](https://openairdocs.org/faa-repair-station/QR9R369D/m1-support-services.md) (OpenAirDocs)
- Aircraft: [N556AH](https://openairdocs.org/aircraft/N556AH), registered now
- Make and model: Bolkms BK117C2
- Aircraft serial: 9829
- Aircraft time: 3,558 hours
- System (JASC): [6720 · Tail Rotor Control System](https://openairdocs.org/jasc/6720)
- Part: Cable
- Part number: 78CF10009
- Part serial: 1312
- Condition: Damaged
- Location: Tail Rotor
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2025051400001

## Discrepancy

AFTER RECEIVING PART FROM SUPPLY, MAINTENANCE DETECTED THE TAIL ROTOR FLEXBALL CABLE THREADS WERE DAMAGED ON FWD END AT JAM NUT. REPLACED CABLE IAW AMM 67-20-00, 4-7.

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