# SDR 95ZZZX5945

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 10, 1995
- Submitted: March 26, 2000
- Operation: General aviation
- Filed by: [Stevens Aerospace and Defense Systems, LLC., repair station VIBR368K](https://openairdocs.org/faa-repair-station/VIBR368K/stevens-aerospace-and-defense-systems-llc.md) (OpenAirDocs)
- Aircraft: N6685D
- Make and model: Beech 58P
- Registry model: [Beech 58P](https://openairdocs.org/model/beech-58p) (OpenAirDocs)
- Aircraft serial: TJ241
- Engine: Cont TSIO520WB
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Rings
- Condition: Seized
- Location: Cyls 2,4,6
- Part time: 602 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/95ZZZX5945

## Discrepancy

THE OPERATOR REPORTED EXCESSIVE OIL CONSUMPTION.  COMPRESSION ON CYLINDERS 2, 4, AND 6 WAS BELOW MINIMUMS WITH BLOWBY BY PISTON RINGS.  DISASSEMBLY REVEALED THE RINGS ON ALL THREE PISTIONS WERE SEIZED DUE TO CARBON BUILD-UP.  THE ENGINE HAS BEEN SERVICED WITH AEROSHELL 15W50 OIL SINCE COMPLETING NORMAL BREAKING.  SUBMITTER STATED THIS SAME CONDITION HAS BEEN NOTED ON OTHER CONTINENTAL ENGINES USING AEROSHELL 15W50.

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