SDR 2003FA0000088

Service difficulty report · Intake Valve · Cessna T188C

Difficulty date: January 14, 2003
Submitted: January 31, 2003
Operation: General aviation
Aircraft: N9614K
Make and model: Cessna T188C
Aircraft serial: T18803962T
Engine: Cont TSIO520T
System (JASC): 8530 · Reciprocating Engine Cylinder Section
Part: Intake Valve
Condition: Leaking
Location: Engine
Stage of operation: IN
How discovered: V
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

AT 470 HOURS ON REBUILT ENGINE, ALL CYLINDERS WERE REMOVE FOR INTAKE VALVE LEAKAGE. ALL VALVE SEATS WERE EASILY RECONDITIONED, BUT VALVES SHOWED MAJOR IDENTATION AT THE SEAT CONTACT AREA, WITH APPARENT MOVEMENT OF VALVE MATERIAL OUTWARD.

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