# SDR QR9R2024050700001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 7, 2024
- Submitted: May 7, 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: 15723879767
- Aircraft time: 3,599 hours
- System (JASC): [6420 · Tail Rotor Head](https://openairdocs.org/jasc/6420)
- Part: Unknown
- Part number: B642M1005101
- Part serial: 3377
- Condition: Misaligned
- Location: Unknown
- 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/QR9R2024050700001

## Discrepancy

DURING INSTALLATION OF THE LAMINATED PILE ASSEMBLY, THE REPAIRED CENTER BORE DID NOT ALLOW PROPER ALIGNMENT OF THE THROUGH BOLT.

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