# SDR HEER20160224241

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 24, 2016
- Submitted: February 25, 2016
- Operation: General aviation
- Filed by: [PHI Aviation, LLC, repair station HEER617E](https://openairdocs.org/faa-repair-station/HEER617E/phi-aviation-llc.md) (OpenAirDocs)
- Aircraft: [N428PH](https://openairdocs.org/aircraft/N428PH), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53754
- Aircraft time: 3,408 hours
- Engine: Allsn 250C47B
- Engine time: 7,885 hours
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Bearing
- Part number: M25010106
- Part serial: NWD103393
- Condition: Spalled
- Location: Turbine
- Part time: 1,447 hours
- Component: Turbine
- Component part number: 23063354
- 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/HEER20160224241

## Discrepancy

REMOVED 1-22-16 DUE TO TURBINE CRACKED EXHAUST COLLECTOR.  NR 5 BEARING SPALLING AT OUTER RACE SPLIT.  INSTALLED NEW NR 5 BEARING.

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