Crash of a Piper PA-61 Aerostar (Ted Smith 601P) in Corona

The airplane was refueled before it departed on the accident flight; the pilot did not supervise the fueling. Shortly after takeoff, the pilot advised the Ontario departure controller that both engines were experiencing a power loss and that he suspected jet fuel contamination. The airplane collided with a berm during the ensuing forced landing. The investigation revealed that the FBO fueled the airplane with 131.3 gallons of Jet A fuel. Investigators did not locate any witnesses who saw the pilot preflight the airplane. The pilot sustained severe head injuries and could not recall if he had preflighted the airplane - the right front seat passenger was not present when the pilot boarded the aircraft.