Flight Details
During preflight inspection, the pilot drained a small fleck of particulate contamination from the left fuel tank. Both tanks were approximately half full, totaling between 17 and 18 gallons. No other discrepancies were observed. The aircraft then departed for a local area acrobatic flight.
Engine Malfunction
After performing a series of maneuvers—including slow rolls, point rolls, loops, and Cuban eights—the engine "coughed significantly." The pilot decided to return to the airport. While en route, the engine began to sputter and run continuously rough, accompanied by a gradual loss of power. The pilot's attempts to remedy the situation were unsuccessful.
Forced Landing and Post-Accident Inspection
A forced landing in desert terrain became necessary. During the landing roll, the aircraft encountered soft soil and nosed over. Responding FAA inspectors reported that they did not find any discrepancies with the aircraft or engine.