# SDR GCHA9518

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 1, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N57491](https://openairdocs.org/aircraft/N57491), registered now
- Make and model: Bell 206L-1
- Registry model: [Bell 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1) (OpenAirDocs)
- Aircraft serial: 45505
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Transmission
- Part number: 206040004101
- Condition: Bearing Failed
- Location: M/R Gr Box
- Part time: 9,794 hours
- Component: 206040004101
- Stage of operation: CR
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/GCHA9518

## Discrepancy

DURING FLIGHT A/C REGISTERED TRANSMISSION CHIP LIGHT.  PERFORMED AN UNSCHEDULED LANDING .  IT WAS FOUND TO HAVE , METAL IN OIL,  DUE TO DUPLEX BEARING FAILURE.  ACTT  7243.3. REMOVED AND REPLACED TRANSMISSION BMC 00503 WITH S/N BMC 45364.

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