# SDR 20001206SH003

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2000
- Submitted: December 6, 2000
- Operation: General aviation
- Aircraft: [N557AL](https://openairdocs.org/aircraft/N557AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53243
- Aircraft time: 1,389 hours
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Shaft
- Part number: 406040516101
- Part serial: AFS1285
- Condition: Worn
- Location: Freewheel Unit
- Part time: 1,389 hours
- Component: Freewheel Unit
- Component part number: 406040500123
- 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/20001206SH003

## Discrepancy

DURING SEAL REPAIR, FOUND WORN SPLINES.  (X)

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