# SDR QR9R20210917001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 17, 2021
- Submitted: September 17, 2021
- 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: 18724269812
- Aircraft time: 1,563 hours
- System (JASC): [2121 · Air Distribution Fan](https://openairdocs.org/jasc/2121)
- Part: Blower
- Part number: 14502501
- Part serial: TC6258311
- Condition: Binding
- Location: Cockpit
- Part time: 162 hours
- 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/QR9R20210917001

## Discrepancy

COCKPIT BLOWER MOTOR HAS GRINDING NOISE. MAINTENANCE REPLACED COCKPIT BLOWER ASSY IAW AMM 21-22-00, 4-3; MOC SUCCESSFULLY COMPLETED.

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