# SDR SDRO200306

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 18, 2003
- Submitted: December 12, 2003
- Operation: Air carrier
- Aircraft: [N791CA](https://openairdocs.org/aircraft/N791CA), registered now
- Make and model: Bell 206L-3
- Registry model: [Bell 206L-3](https://openairdocs.org/model/bell-206l-3) (OpenAirDocs)
- Aircraft serial: 51455
- System (JASC): [6310 · Engine/Transmission Coupling](https://openairdocs.org/jasc/6310)
- Part: Freewheel Unit
- Part number: 206040270009
- Part serial: BMB45411
- Condition: Failed
- Location: Main Rotor
- Stage of operation: TX
- How discovered: O
- Nature of condition: J
- Precautionary procedure: E
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/SDRO200306

## Discrepancy

DURING GROUND RUN PRIOR TO FLIGHT, TRANSMISSION CHIP LIGHT ILLUMINATED.  AIRCRAFT WAS SHUT DOWN.  ON INSPECTION, MECHANIC FOUND A SLIVER ON FREE WHEELING UNIT CHIP PLUG.  CLEANED CHIP PLUGS AND PERFORMED MAINTENANCE REQUIREMENTS STATED IN MM.  AIRCRAFT APPROVE FOR RETURN TO SERVICE.

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