Accident Overview
A pilot departed on a local flight but did not return, leading to a search operation. The aircraft was located approximately 3 miles southeast of the departure airstrip. It had collided with near-level desert terrain at a 45-degree angle, with no indications of rotation during impact. The propeller showed signs of rotation, and the tachometer needle imprint indicated approximately 975 rpm.
Engine and Fuel Examination
Examination of the engine and its accessories found no discrepancies. The fuel system was approved for and operating on automobile gasoline. An unquantified amount of fuel was present in the left wing fuel tank. Internal deterioration of fuel hoses was observed, obstructing a fuel sight gauge vent line and coupling hoses. Minor contamination was found in the fuel gascolator bowl, along with a rust-colored water line.
Aircraft Configuration and Seat Belt Attachments
The aircraft was being operated without the front seat. Both rear seat belt attach points, constructed of 0.090-inch steel wire around 4130 steel tubing, had separated. No shoulder harness was installed in the aircraft.