ATHENS, GA, USA
N17696
BEECH A36
WHILE CRUISING AT 6,000', THE PLT FELT AN INTENSE VIBRATION FM THE ENG. POWER WAS REDUCED & A DESCENT WAS BEGUN TOWARD A NEARBY ARPT. BEFORE REACHING THE ARPT, THE ENG LOST POWER & AN EMERGENCY WHEELS-UP LANDING WAS MADE IN AN OPEN FIELD. AN EXAM OF THE ENG REVEALED THE #1 EXHAUST VALVE HAD FAILED. THE VALVE GUIDE WAS BATTERED & BROKEN, AND WAS LOOSE IN ITS BORE. THE BORE WAS FRETTED & HAD BECOME OVERSIZED. THE ENG HAD BEEN OVERHAULED & INSTALLED IN THE ACFT ON 1/20/82 WITH A TOTAL TIME OF 1515 HRS. ACCORDING TO THE LOG BOOK, NEW VALVES & VALVE GUIDES HAD BEEN INSTALLED AT THAT TIME. THE ENG TIME SINCE MAJOR OVERHAUL WAS 1041 HRS.
Source: NTSB Aviation Accident Database
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