Accident Details
The airplane had recently been repainted and was being ferried to another airport for complete refurbishing. The interior, including avionics and most of the instruments, had been removed. Prior to departure, the ATP-rated pilot drained both inboard wing tanks and drained no fuel. He requested that 15 gallons of fuel be added to each side. The fuel was put in the inboard (auxiliary) fuel tanks, which have a fuel capacity of 15 gallons each. No fuel was added to the outboard (main) fuel tanks, which have a fuel capacity of 40 gallons each.
Flight and Descent
Departure and the 20-minute en route flight were without reported incident. Witnesses said the pilot had to abandon his initial landing approach to runway 34 due to conflicting traffic. The pilot then turned downwind for runway 6, but the airplane descended below airport elevation (the airport is situated on top of a mesa). Various witness accounts indicated one or both engines lost power. The airplane struck powerlines and impacted a downtown street.
Investigation Findings
Fuel selector valve handles were not found in the wreckage. Upon opening both wings, the left and right fuel selector valves were found slightly misaligned from being centered on the left and right main tanks, respectively. The fuel tanks were then drained. Each auxiliary (inboard) tank contained 15 gallons of fuel. Approximately 3 ounces of fuel were drained from the left main (outboard) tank. No fuel drained from the right main tank.
No probable cause was stated in the source.