# SDR 2001F00506

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2001
- Submitted: October 29, 2001
- Operation: Air carrier
- Aircraft: [N105LC](https://openairdocs.org/aircraft/N105LC), registered now
- Make and model: Bolkms BO105CBS
- Aircraft serial: S789
- System (JASC): [6320 · Main Rotor Gearbox](https://openairdocs.org/jasc/6320)
- Part: Transmission
- Part number: 4638001001
- Part serial: 910
- Condition: Making Metal
- Location: Main Rotor
- Part time: 522 hours
- Stage of operation: NR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2001F00506

## Discrepancy

MAIN ROTOR TRANSMISSION MAKING METAL.  TWO PRIOR PROBLEMS WITH MM WERE REPAIRED UNDER WARRANTY BY ECL.  REPLACED WITH NEW UNIT CORRECTED PROBLEM.  (M)

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