# SDR HEER20151202952

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 2, 2015
- Submitted: December 3, 2015
- Operation: General aviation
- Aircraft: [N420PH](https://openairdocs.org/aircraft/N420PH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53747
- Aircraft time: 9,015 hours
- Engine: Allsn 250C47B
- Engine time: 7,801 hours
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Bearing
- Part number: M25010106
- Part serial: NWC140097
- Condition: Spalled
- Location: Nr 5
- Part time: 795 hours
- Component: Turbine
- Component part number: M25010557
- 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/HEER20151202952

## Discrepancy

ENGINE REMOVED 11-17-15 DUE TO SUDDEN STOPPAGE, INSPECTION.  NR 5 BEARING EXHIBITED SPALLING BALLS AND OUTER RACE AT SPLIT.  INSTALLED NEW PART.

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