# SDR QR9R20210826002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 26, 2021
- Submitted: August 26, 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: 09721129336
- Aircraft time: 2,384 hours
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Transmission
- Part number: B632M2001102
- Part serial: KA0916
- Condition: Contaminated
- Location: Main Rotor
- Part time: 2,384 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: C
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R20210826002

## Discrepancy

MAIN TRANSMISSION DUE REPLACEMENT PER AIRBUS AHD FOR CONTAMINATION FROM WATER INTRUSION.

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