A C182 in cruise at 2500 ft diverted due to loss of power caused by a stuck exhaust valve.

Attributes
ACN	537716
Time
Date	200112
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : 2i5.airport
State Reference	FL
Altitude	msl single value : 2500
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Operator	general aviation : personal
Make Model Name	Skylane 182/RG Turbo Skylane/RG
Operating Under FAR Part	Part 91
Flight Phase	cruise : level
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : private pilot : instrument
Experience	flight time last 90 days : 25 flight time total : 3000 flight time type : 450
ASRS Report	537716
Events
Anomaly	aircraft equipment problem : critical other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : engine indications other flight crewa
Resolutory Action	flight crew : diverted to another airport
Consequence	other
Supplementary
Problem Areas	Aircraft
Primary Problem	Aircraft

Narrative:

The airplane is a 1997 model 182S cessna with a 230 horsepower io-540 lycoming engine. An exhaust valve stuck closed on #3 cylinder. The push rod bent and the push rod tube broke and oil leaked from the hydraulic lifter. Low (or no) oil pressure was noted with a 20-30% loss of power. A landing at the nearest airport was accomplished. The engine was removed, torn down and repaired.

Original NASA ASRS Text

Title: A C182 IN CRUISE AT 2500 FT DIVERTED DUE TO LOSS OF PWR CAUSED BY A STUCK EXHAUST VALVE.

Narrative: THE AIRPLANE IS A 1997 MODEL 182S CESSNA WITH A 230 HORSEPOWER IO-540 LYCOMING ENG. AN EXHAUST VALVE STUCK CLOSED ON #3 CYLINDER. THE PUSH ROD BENT AND THE PUSH ROD TUBE BROKE AND OIL LEAKED FROM THE HYD LIFTER. LOW (OR NO) OIL PRESSURE WAS NOTED WITH A 20-30% LOSS OF PWR. A LNDG AT THE NEAREST ARPT WAS ACCOMPLISHED. THE ENG WAS REMOVED, TORN DOWN AND REPAIRED.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.