# SDR 96ZZZX5291

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 28, 1996
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: N2FOR
- Engine: Cont IO520*
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Cylinder
- Condition: Seat Worn
- Location: Nr 4 Cyl Exh
- Part time: 422 hours
- 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/96ZZZX5291

## Discrepancy

THE AIRCRAFT ARRIVED FOR 100-HOUR INSPECTION.  COMPRESSION CHECK SHOWED NR 4 CYLINDER 55/80.  ALL OTHER CYLINDERS WERE IN THE MID 70'S.  THE CYLINDER WAS REMOVED. EXHAUST VALVE AND SEAT WERE WORN EXCESSIVELY.  THIS IS A FACTORY RE-MANUFACTURED ENGINE.  ALSO, FOUND, EXHAUST GUIDE WORN EXCESSIVELY, CYLINDER CHOKE AT MINIMUM SERVICE  LIMIT, AND CYLINDER .0015 INCH OUT OF ROUND.  ALL OTHER CYLINDERS APPEAR TO BE NORMAL.

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