Accident Overview
A non-certificated pilot took off with one passenger and both doors removed from the aircraft. Witnesses observed the pilot making multiple low passes near boats, under power lines, and close to people on the water surface. Several witnesses reported that the passenger was sitting with his legs hanging out of the passenger doorway. During one of these passes, the aircraft struck the front end of a boat. The passenger in the aircraft and two occupants on the boat were fatally injured. The pilot and one occupant on the boat sustained serious injuries.
Pilot Background and Flight Details
An investigation revealed that the pilot had been flying regularly and had accumulated approximately 313 hours of total flying time. However, he held no medical or pilot certificate. No authorization had been obtained to operate the aircraft without doors. Before departure, the pilot reported adding 12 gallons of auto fuel. The plane had flown for about 3.5 hours before the accident. Due to impact damage and submersion in water, the amount of fuel on board at the time of impact could not be determined. Additionally, the pilot's blood alcohol level was measured at 0.14%.
Investigation Findings
The investigation determined that the pilot was not certificated and lacked the required medical certification. The operation of the aircraft without doors was unauthorized. The pilot's use of auto fuel and his elevated blood alcohol level were noted. The precise fuel quantity at impact remained undetermined due to the accident circumstances.