# SDR 2001F00689

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 13, 2001
- Submitted: December 4, 2001
- Operation: Air carrier
- Aircraft: N202HN
- Make and model: Bolkms BK117A3
- Aircraft serial: 7115
- Engine: Lyc LTS101650B1
- System (JASC): [7260 · Turbine Engine Accessory Drive](https://openairdocs.org/jasc/7260)
- Part: Bearing
- Part number: 230001303
- Part serial: 981991434721
- Condition: Damaged
- Location: Gearbox
- Part time: 223 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/2001F00689

## Discrepancy

FOUND EXCESSIVE PITTING ON ANNULAR BALL BEARING.  REPLACED WITH NEW UNIT, CORRECTED PROBLEM.  (M)

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