SDR 98ZZZX1454

Service difficulty report · Gasket · Cessna TU206G

Difficulty date: March 30, 1998
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N9438M
Make and model: Cessna TU206G
Aircraft serial: U20604546
Engine: Cont TSIO520M
System (JASC): 8530 · Reciprocating Engine Cylinder Section
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

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

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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