# SDR CA120229008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 28, 2012
- Submitted: September 14, 2015
- Operation: General aviation
- Make and model: Bell 407
- Registry model: [Bell 407](https://openairdocs.org/model/bell-helicopter-textron-canada-407) (OpenAirDocs)
- Aircraft time: 8,823 hours
- Engine: Allsn 250C47B
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Scroll
- Part number: 23065593
- Condition: Cracked
- Location: Compressor
- Part time: 6,083 hours
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA120229008

## Discrepancy

(CAN) APPROXIMATE 4" VERTICAL CRACK FOUND ON LT FORWARD SIDE OF ENGINE COMPRESSOR SCROLL DURING SCHEDULED DAILY INSPECTION. COMPLETE ENGINE REPLACED.  COMPRESSOR BEING SENT FOR O/H.  SCROLL IS THIN-WALL TYPE AND WILL BE EXCHANGED FOR THICK WALL VERSION.

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