The pilot reported a "rough mag" on the No. 4 engine.
Probable cause: The pilot's decision to continue visual flight into instrument meteorological conditions, which resulted in spatial disorientation and a subsequent loss of control.
Probable cause: The pilot’s geographic disorientation while maneuvering in the airport traffic pattern in dark night conditions, which resulted in the airplane descending below a normal approach path and a collision with trees. Contributing to the accident was the pilot's lack of recent night flight experience.
Probable cause: The pilot's decision to fly along the river at a low altitude contrary to applicable regulations and safety of flight considerations which resulted in the impact with the power lines. Contributing to the accident was the
Probable cause: An intermittent failure of the power take-off cylinder ignition coil, which resulted in a partial loss of engine power.
Probable cause: The student pilot’s improper landing flare, which resulted in a hard landing and porpoise.
Probable cause: The pilot's unstabilized approach at night, which resulted in collision with trees.
Probable cause: The pilot’s failure to track the runway centerline during an attempted go-around, which resulted in impact with a hangar.
The investigation has begun into the crash.
Probable cause: The pilot's decision to attempt a low-altitude aerobatic maneuver in a non-aerobatic airplane, and his subsequent failure to maintain control of the airplane during the maneuver. Contributing to the accident was the pilot's i