# SDR 20010205CW009

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 13, 2000
- Submitted: February 5, 2001
- Operation: General aviation
- Aircraft: N7090B
- Make and model: Piper PA-31-350
- Registry model: [Piper PA-31-350](https://openairdocs.org/model/piper-pa-31-350) (OpenAirDocs)
- Aircraft serial: 317752075
- Engine: Lyc TIO540J2BD
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rod Bolt
- Part number: AL75060
- Condition: Broken
- Location: Nr4 Cylinder
- Component: Engine, Lyc
- Component part number: TIO540J2BD
- Stage of operation: CR
- How discovered: O
- Nature of condition: Y
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/20010205CW009

## Discrepancy

CONNECTING ROD BOLT BROKEN ON NR4 CYLINDER, LT ENGINE.  DURING CRUSE FLIGHT.  NR4 CYLINDER WAS PUSHED THRU COWLING AND BROKE OUT LEFT UPPER CRANKCASE.

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