# SDR RYMA33656

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2001
- Submitted: November 13, 2001
- Operation: Air carrier
- Aircraft: [N105LC](https://openairdocs.org/aircraft/N105LC), registered now
- Make and model: Bolkms BO105CBS
- Aircraft serial: S789
- Engine: Allsn 250C20
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Transmission
- Part number: 4638001001
- Part serial: 910
- Condition: Failed
- Location: Main Rotor
- Part time: 7,646 hours
- 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/RYMA33656

## Discrepancy

MAKING METAL.  TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY MFG.  REPLACED WITH NEW UNIT CORRECTED PROBLEM.

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