Engine Oil Pressure Loss and Forced Landing in Grass Field (N2679V)

Incident Overview and Emergency Landing Reportedly, the pilot experienced a loss of indicated engine oil pressure approximately 10 minutes after takeoff. Following this initial indication, the engine began to run rough and ultimately seized about two miles short of the pilot's intended divert airport. In response to the mechanical failure, the pilot initiated an emergency landing in a nearby grass field. During the landing rollout, the airplane collided with a fence. ## Mechanical Examination Findings Subsequent examination of the engine identified the specific mechanical failure. The No. 3 connecting rod bearing had become unsecured and rotated about its installed location, which ultimately blocked its lubrication port. This failure led to the No. 3 connecting rod failing. Additionally, a hole was observed in the crankcase adjacent to the No. 1 cylinder.