# SDR 2010FA0000798

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 26, 2010
- Submitted: August 6, 2010
- Operation: General aviation
- Engine: Allsn 250C20B
- System (JASC): [7260 · Turbine Engine Accessory Drive](https://openairdocs.org/jasc/7260)
- Part: Pinion Gear
- Part number: 6889700
- Part serial: UG43432
- Condition: Damaged
- Location: Engine
- Part time: 605 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/2010FA0000798

## Discrepancy

METAL IS SPREAD AT THE CONTACT POINT OF THE GEAR TEETH.  IT APPEARS LIKE THE METAL IS SOFT.  THE CONDITION OF THIS GEAR CAUSED A HIGH VIBRATION IN THE ENGINE ASSY.

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