# SDR YTRA2013073000002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 23, 2013
- Submitted: July 30, 2013
- Operation: Air carrier
- Aircraft: [N410RL](https://openairdocs.org/aircraft/N410RL), 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: 52310
- Aircraft time: 6,826 hours, 8,985 cycles
- Engine: Allsn 250C30P
- Engine time: 11,242 hours, 16,861 cycles
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Duplex Bearing
- Part number: 206040032105
- Part serial: MB2756
- Condition: Spalled
- Location: M/R Transmission
- Part time: 506 hours
- Stage of operation: CR
- How discovered: O
- Nature of condition: J
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/YTRA2013073000002

## Discrepancy

MAIN ROTOR TRANSMISSION DUPLEX BEARING, BEARING SET SPALLING.

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