# SDR ALG2005F00067

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 13, 2005
- Submitted: September 13, 2005
- Operation: Air carrier
- Aircraft: [N697AL](https://openairdocs.org/aircraft/N697AL), registered now
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft serial: 53374
- Engine: Allsn 250C47B
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Engine
- Condition: Fod
- Stage of operation: CL
- How discovered: O
- Nature of condition: E, F
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/ALG2005F00067

## Discrepancy

ON TAKE OFF, HIGH PITCH WHINE WAS NOTED.  NOTIFIED MAINTENANCE.  INSPECTED ENGINE AND FOUND COMPRESSOR FOD DAMAGE.  REMOVED AND REPLACED ENGINE ASSY.  GROUND RUN, VIBRATION CHECK, AND LEAK CHECK ALL GOOD.  WORK  IAW MM.  (K)

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