Sequence of Events
During the departure climbout, after reaching between 1,500 and 2,000 feet above ground level, the flight instructor observed that the student pilot had not properly set the throttle friction lock. The throttle had retarded to about 15 inches of manifold pressure. The instructor directed the student to advance the throttle. When the student did so, the manifold pressure rose momentarily and then the engine abruptly stopped delivering power.
The instructor took control of the aircraft, performed the engine failure checklist, declared an emergency, and established a glide toward a nearby airport. When it became apparent that the aircraft could not glide to the airport, he turned toward an open agricultural field. The aircraft impacted the roof of a house and a light pole across the street from the field boundary and came to rest at the edge of the field.
Postaccident Examination
Postaccident examination revealed that a fuel supply hose had come unscrewed off the inlet nipple of the fuel control unit. A 100-hour inspection had been completed the prior day, and this was the first flight following that inspection.