# SDR 95ZZZX954

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N1740W](https://openairdocs.org/aircraft/N1740W), registered now
- Make and model: Beech G33
- Registry model: [Beech G33](https://openairdocs.org/model/beech-g33) (OpenAirDocs)
- Aircraft serial: CD1302
- Engine: Cont IO520BB
- System (JASC): [8520 · Reciprocating Engine Power Section](https://openairdocs.org/jasc/8520)
- Part: Bolt
- Part number: 6419311075
- Condition: Broken
- Location: Nr 2 Cylinder
- Part time: 129 hours
- Stage of operation: IN
- Nature of condition: K
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/95ZZZX954

## Discrepancy

DURING ROUTINE MAINTENANCE, AN OIL LEAK WAS NOTED BETWEEN THE NR 2 CYLINDER AND THE OIL COOLER.  FURTHER INSPECTION REVEALED LOWER AFT THROUGH-BOLT BROKEN APPROXIMATELY ONE-THIRD ITS LENGTH.  REPLACEMENT BOLT WAS A SLIGHTLY DIFFERENT DESIGN.  ENGINE TIME SINCE FACTORY REBUILD, 128.64.

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