# SDR 2009FA0000740

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 14, 2009
- Submitted: August 21, 2009
- Operation: General aviation
- Engine: Allsn 250C20B
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Impeller
- Part number: 23058147
- Part serial: KR113608
- Condition: Cracked
- Location: Compessor
- Component: Compessor, Rroyce
- 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/2009FA0000740

## Discrepancy

COMPRESSOR WAS RECEIVED TO REPAIR FOR DAMAGE TO ROTOR.  UPON DISASSEMBLY AND INSP, DISCOVERED THAT A SECTION OF SHROUD BETWEEN THE NR 2 VANES AT THE FWD END OF THE IMPELLER (IDENTIFIED AS DIAMETER I) HAD BROKEN OFF.  CAUSE COULD NOT BE DETERMINED.  HOURS AND CYCLES COULD NOT BE DETERMINED.

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