# SDR 95ZZZX1138

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 21, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Engine: Allsn 250C30P
- System (JASC): [7230 · Turbine Engine Compressor Section](https://openairdocs.org/jasc/7230)
- Part: Mount Assy
- Part number: 23007217
- Condition: Mismanufactured
- Location: Compressor
- Part time: 1,177 hours
- Stage of operation: IN
- Nature of condition: W
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX1138

## Discrepancy

MOUNT FACE TO MOUNT BOSS HEIGHT LIMITS ARE 1.715 INCHES TO 1.707 INCHES IN THE O/H MANUAL.  THIS MOUNT MEASURED 1.770 INCHES TO 1.730 INCHES.  THE MISALIGNMENT DAMAGED THE SPUR ADAPTER, GEAR SHAFT, COUPLING ADAPTER, AND IMPELLER BORE.

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