# SDR QR9R20220505002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 5, 2022
- Submitted: May 5, 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: 14723389710
- Aircraft time: 2,933 hours
- System (JASC): [6500 · Tail Rotor Drive System](https://openairdocs.org/jasc/6500)
- Part: Bearing
- Part number: 550986
- Part serial: 2021651
- Condition: Ratcheting
- 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/QR9R20220505002

## Discrepancy

DURING INSTALLATION, MAINTENANCE DETECTED THE SLIDING SLEEVE ANGULAR BALL BEARING TO BE ROUGH AND RATCHETING. PART WAS RECEIVED NEW FROM AIRBUS.

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