# SDR CA951108013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 21, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Engine: Allsn 250C20
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Nozzle
- Part number: 6878426
- Condition: Cracked
- Location: 2nd Stage Band
- Component: Allsn, 6898734
- Stage of operation: IN
- Nature of condition: R
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/CA951108013

## Discrepancy

(CAN)ENGINE WAS SENT IN FOR COMPLAINT OF LOW POWER. THE LOG BOOK INDICATES 3098 HOURS SINCE NEW. ENGINE WAS TESTED AND WAS FOUND TO HAVE A RUB AND VIBRATION. UNABLE TO COMPLETE TEST TO CONFIRM LOW POWER. ON DISASSEMBLY THE SECOND STAGE NOZZLE WAS FOUND TO HAVE A CIRCUMFERENTIAL CRACK EXTENDING 80 PERCENT AROUND THE OUTER BAND ADJACENT TO THE FIRST STAGE BLADE PATH.

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