April 7, 2012, Casper, Wyo., Piper PA-28-181 Archer


The airplane was landed in a field at about 1830 Mountain time following loss of engine power. The student pilot and passenger sustained minor injuries. Visual conditions prevailed.

After reaching cruise altitude, the pilot observed a decrease in engine oil pressure. He diverted and a few minutes later, the engine speed began to decrease, with an accompanying engine vibration. The engine eventually lost all power, and the propeller stopped rotating. The pilot subsequently landed in a field, where the airplane sustained substantial damage. An FAA inspector reported oil remained in the engine crankcase and fuel was present in both wing tanks.


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