# SDR 8MHR2017051011434

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 2017
- Submitted: May 10, 2017
- Operation: General aviation
- Filed by: [Keystone Turbine Services, LLC, repair station 8MHR895B](https://openairdocs.org/faa-repair-station/8MHR895B/keystone-turbine-services-llc.md) (OpenAirDocs)
- Engine: Allsn 250C47B
- Engine time: 8,256 hours, 22,733 cycles
- System (JASC): [7250 · Turbine Section](https://openairdocs.org/jasc/7250)
- Part: Blades
- Condition: Fractured
- Location: Turbine Section
- Part time: 21 hours
- Stage of operation: NR
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/8MHR2017051011434

## Discrepancy

HEAVY DAMAGE NOTED ON THE TURBINE BLADES. SEVERAL BLADES HAD SEPARATED PARTIALLY OR COMPLETELY FROM THE WHEEL.

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