SEA87LA048

The owner and an acquaintance, both commerically rated pilots, departed Fallon, Nevada, on a personal flight to a nearby town. Witnesses reported observing the aircraft engaged in maneuvers described as steep turns and sharp dives a short distance from the departure airport. During these maneuvers the aircraft entered into a stall-spin condition. The low altitude of the spin entry prevented a successful recovery prior to ground impact. Although the flight controls were accessible to both pilots it could not be determined which pilot ( or whether both) was controlling the aircraft during the spin entry. The type of maneuvers and their duration were not considered to be indicative of a pilot incapacitation scenario nor was there any evidence of a control discontinuity/malfunction within the aircraft.