What happened
During a takeoff attempt on a runway covered with two inches of snow, the pilot elected to perform a short field takeoff. According to the pilot, back pressure was applied to the yoke at 70 mph, and the aircraft lifted off at 80 mph. Following liftoff, the aircraft settled back onto the runway before lifting off a second time.
As the aircraft flew beyond the departure end of the runway, it failed to climb or accelerate. Fearing a collision with trees located beyond the runway end, the pilot applied full flaps in an attempt to cushion the descent. The aircraft subsequently landed in the runway overrun area and experienced a nose-over.
The investigation
A post-accident engine run was conducted to evaluate the powerplant. This investigation revealed a partial loss of engine power and identified an erratic firing spark plug.