SDR 98ZZZX4470

Service difficulty report · Valve Guide · Cessna 182Q

Difficulty date: September 7, 1996
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: 649168
Condition: Worn
Location: Engine Exhaust
Part time: 700 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 ON THE EXHAUST VALVES ON THE NR 1 AND NR 3 CYLINDERS. THE REMOVED CYLINDERS, EXHAUST VALVES AND GUIDES WERE FOUND WORN OUT. SUBMITTER SUGGESTED POSSIBLE CAUSE AS DEFECTIVE PARTS AND/OR ASSSEMBLY PROCES FROM THE FACTORY.

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