# SDR 95ZZZX811

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 1, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N66518](https://openairdocs.org/aircraft/N66518), registered now
- Make and model: Beech 58
- Registry model: [Beech 58](https://openairdocs.org/model/beech-58) (OpenAirDocs)
- Aircraft serial: TH1044
- Engine: Cont IO520CB
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Crankcase
- Part number: 642001
- Condition: Cyl Separated
- Location: Nr 2
- Part time: 2,889 hours
- Stage of operation: CL
- Nature of condition: E, R, K
- Precautionary procedure: E, A
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX811

## Discrepancy

AFTER TAKEOFF, PILOT NOTICED ROUGHNESS IN RIGHT ENGINE, HE REDUCED POWER, ENGINE RAN SMOOTH FOR A SHORT TIME THEN BECAME ROUGH AGAIN.  AT THIS TIME, OIL WAS NOTED ON THE TOP OF RIGHT COWL.  THE PILOT FEATHERED THE ENGINE AND LANDED.  NR 2 CYLINDER WAS FOUND SEPARATED FROM THE CASE AND TOP THROUGH-BOLT FOUND BROKEN.  CANNOT DETERMINE WHICH FAILED FIRST, THE BOLT OR THE CASE.

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