# SDR 97ZZZX5078

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: November 12, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N105LC](https://openairdocs.org/aircraft/N105LC), registered now
- Make and model: Bolkms BO105S
- Aircraft serial: S789
- Engine: Allsn 250C20
- System (JASC): [7210 · Turbine Engine Reduction Gear](https://openairdocs.org/jasc/7210)
- Part: Gearbox
- Part number: 6894171
- Condition: Broken
- Location: Mount
- Part time: 4,962 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX5078

## Discrepancy

ENGINE HAD GEARBOX THAT HAD UPPER LEFT COMPRESSOR MOUNT BROKEN OFF.  FOUND NO REASON FOR BREAKAGE.

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