SDR 2001FA0000231

Service difficulty report · Valve Seat · Cessna A185E

Difficulty date: August 16, 2001
Submitted: August 29, 2001
Operation: General aviation
Aircraft: N70083
Make and model: Cessna A185E
Aircraft serial: 18501950
Engine: Cont IO520*
System (JASC): 7230 · Turbine Engine Compressor Section
Part: Valve Seat
Part number: 6375506
Condition: Cracked
Location: Cylinder
Stage of operation: IN
How discovered: C
Nature of condition: O
Precautionary procedure: K

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

What was found

DURING A ROUTINE COMPRESSION CHECK, A LEAK WAS FOUND IN THIS CYLINDER (AIR WAS ESCAPING FROM IN BETWEEN COOLING FINS). UPON REMOVAL OF CYLINDER, 2 CRACKS APPROX. 1 INCH AND .7500 INCH LONG, WERE FOUND TO BE EMANATING FROM THE EXHAUST VALVE SEAT.

More about the Cessna A185E