# SDR AU960336

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 13, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Make and model: Beech 58
- Registry model: [Beech 58](https://openairdocs.org/model/beech-58) (OpenAirDocs)
- Engine: Cont IO520C
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Part number: 1265879C
- Condition: Cracked
- Location: R Engine Power S
- Component: Cont, IO520C
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AU960336

## Discrepancy

(AUS) CRANKCASE CRACKED FROM NO6 CYLINDER TOP REAR STUD - FURTHER  INVESTIGATION FOUND CRANKCASE WAS CRACKED IN FOUR AREAS -CRACKING CAUSED BY THERMAL STRESS DUE TO POWER AND TEMPERATURE LOADS IMPOSED DURING FLIGHT TRAINING

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