SDR 98ZZZX4465

Service difficulty report · Valve Guide · Cessna 182Q

Difficulty date: May 20, 1997
Submitted: March 26, 2000
Operation: General aviation
Aircraft: N954CC
Make and model: Cessna 182Q
Aircraft serial: 18265290
Engine: Cont O470U
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Valve Guide
Part number: 648168
Condition: Worn
Location: Engine Exhaust
Part time: 400 hours
Stage of operation: IN
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, LEAKAGE WAS FOUND PAST THE EXHAUST VALVE ON THE NR 3 CYLINDER. THE REMOVED CYLINDER, EXHAUST VALVE AND GUIDE WERE FOUND WORN OUT. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS AND/OR ASSEMBLY PROCESS FROM THE FACTORY.

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