The pilot's failure to maintain directional control during an aborted takeoff. Contributing to the accident were the loss of engine power due to a malfunctioning alternator, which precipitated the off-field landing, and the pilot’s decision to attempt to take off from an area with high grass, which precipitated the loss of directional control.

The pilot's failure to maintain adequate spacing from the preceding aircraft during a formation landing, resulting in an inadvertent "prop wash" encounter, loss of control, and impact with terrain.