Accident Overview
A private pilot conducted a maintenance flight following the installation of a new 300 horsepower Continental IO-550-D37 engine. As part of the engine conversion, a small header tank with a capacity of about 1.5 gallons of fuel was installed on the airplane.
Flight and Incident
During the takeoff, the pilot reported that the fuel selector was left in the OFF position. The airplane climbed to an altitude of 500 feet above ground level when the engine lost power. The pilot initiated a turn back toward the airport to perform a forced landing. The airplane subsequently impacted terrain on the airport property, resulting in substantial damage.
Pilot Report
According to the pilot, the maintenance flight was necessary to break in the new engine. He indicated that he forgot to move the fuel selector from the OFF position to the BOTH position before departure, which led to the loss of engine power. No other factors were reported.