# SDR 2009FA0000078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 11, 2009
- Submitted: February 11, 2009
- Operation: General aviation
- Aircraft: [N317RL](https://openairdocs.org/aircraft/N317RL), registered now
- Make and model: Bell 206L-4
- Registry model: [Bell 206L-4](https://openairdocs.org/model/bell-helicopter-textron-canada-206l-4) (OpenAirDocs)
- Aircraft serial: 52317
- Aircraft time: 4,663 hours, 4,495 cycles
- Engine: Allsn 250C30P
- System (JASC): [6230 · Main Rotor Mast/Swashplate](https://openairdocs.org/jasc/6230)
- Part: Collar
- Part number: 206011005105
- Part serial: 349
- Condition: Cracked
- Location: Main Rotor
- Stage of operation: LD
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2009FA0000078

## Discrepancy

ON SHUTDOWN AT AN OFFSHORE PLATFORM THE PILOT HEARD A POP. ON INSP, HE DISCOVERED THE COLLAR SET LOOSE ON THE MAST ASSY.

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