# SDR CA051223004

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 12, 2005
- Submitted: June 6, 2006
- Operation: General aviation
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Engine: Allsn 250C47B
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Clutch
- Part number: 406040506101
- Part serial: A1643
- Condition: Cracked
- Location: Freewheeling
- Part time: 4,627 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA051223004

## Discrepancy

4 FATIGUE CRACKS WERE FOUND AROUND TWO LOWER ENGINE ATTACHMENT BOLT HOLES.

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