# SDR Y3AR097979

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 20, 2004
- Submitted: November 15, 2004
- Operation: Air carrier
- Make and model: Clark 1000CLARK
- Engine: Allsn 250C28B
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Turbine Nozzle
- Part number: 23031938
- Part serial: X56571
- Condition: Destroyed
- Location: Engine
- Part time: 791 hours, 1,417 cycles
- Stage of operation: CR
- How discovered: O
- Nature of condition: O
- Precautionary procedure: A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/Y3AR097979

## Discrepancy

DURING DISASSEMBLY FOUND NR 2 TURBINE NOZZLE DIAPHRAM TO BE DETACHED FROM THE NOZZLE ASSEMBLY. THIS CAUSED THE DIAPHRAM TO RUB ON BOTH THE 1ST & 2ND STAGE TURBINE WHEELS CAUSING SEVER DAMAGE TO BOTH WHEELS

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