# SDR QR9R2024031500001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 15, 2024
- Submitted: March 15, 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: 10721399370
- Aircraft time: 3,130 hours
- System (JASC): [6200 · Main Rotor System](https://openairdocs.org/jasc/6200)
- Part: Bolt
- Part number: B661M1006201
- Part serial: 1156
- Condition: Cracked
- Part time: 1,796 hours
- Stage of operation: IN
- How discovered: M
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/QR9R2024031500001

## Discrepancy

DURING 800 HR INSPECTION, FOUND CRACKS IN BOLT USING NDI METHOD.

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