# SDR 98ZZZX1454

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 1998
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N9438M](https://openairdocs.org/aircraft/N9438M), registered now
- Make and model: Cessna TU206G
- Registry model: [Cessna TU206G](https://openairdocs.org/model/cessna-tu206g) (OpenAirDocs)
- Aircraft serial: U20604546
- Engine: Cont TSIO520M
- System (JASC): [8530 · Reciprocating Engine Cylinder Section](https://openairdocs.org/jasc/8530)
- Part: Gasket
- Part number: 653191
- Condition: Leaks
- Location: Cyl Nr 3 Rocker
- Part time: 9 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/98ZZZX1454

## Discrepancy

A SMALL OIL LEAK ON NR 3 CYLINDER WAS REPAIRED BY INSTALLING A NEW P/N 653191 ROCKER COVER GASKET.  NINE HOURS LATER,  A LARGE OIL LEAK WAS EVIDENT, CYLINDER NR 3.  UPON PULLING COVER, FOUND GASKET HAD SHRUNK CAUSING OIL LEAK WHERE THE GASKET WENT STRAIGHT BETWEEN TWO SCREWS.

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