# SDR 97ZZZX4484

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 1, 1997
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N112BS
- Make and model: Beech 58
- Registry model: [Beech 58](https://openairdocs.org/model/beech-58) (OpenAirDocs)
- Aircraft serial: TH628
- Engine: Cont IO520C
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Part number: 64200
- Condition: Cracked
- Location: Nr 6 Cyl Flange
- Stage of operation: NR
- Nature of condition: E, R, K
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/97ZZZX4484

## Discrepancy

RIGHT ENGINE CRANKCASE CRACKED AT THE UPPER STUD AREA OF THE NR 6 CYLINDER ALLOWING THE CYLINDER TO COMPLETELY SEPARATE FROM THE CASE CAUSING ENGINE FAILURE UNDER NORMAL FLIGHT CONDITIONS.  SUBMITTER RECOMMENDATION:  DYE PENETRANT, INSPECTION CRANKCASE REF:  AD 77-13-22, FOR EARLIER MODEL ENGINES.

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