Incident
Following takeoff, the engine ceased operation abruptly at an altitude of 400 feet above ground level, according to the pilot. He reported that he immediately pumped the throttle twice and activated the auxiliary fuel pump, but engine power was not restored. A hard forced landing was executed in an industrial park adjacent to the airport.
Postaccident Examination
Postaccident inspection of the airplane indicated approximately 20 gallons of fuel in the left main fuel tank and 7 gallons in the right main fuel tank; no contamination was found. Examination of the engine revealed continuity of the crankshaft, camshaft, and valve train. No discrepancies were noted in the ignition system.
Fuel lines within the engine compartment were examined. No fuel was present in the line from the throttle body fuel control unit to the fuel manifold valve, nor in the line from the mechanical fuel pump to the throttle body fuel control unit. The only fuel line containing fuel was the return line from the throttle body fuel control unit to the mechanical fuel pump.
Bench testing of fuel injection components showed no evidence of failure or malfunction in any of the tested components.
Probable Cause
The investigation did not state a probable cause.