Amateur-built KITFOX LITE 2 N32122 accident near Cedarville, California

Probable cause

A loss of engine power during cruise flight due to air in the fuel system. Contributing to the accident was the pilot’s incorrect maintenance that did not properly secure the fuel lines.

NTSB analysis

The pilot, who did not hold a repairman or mechanic certification, reported that he had been replacing the fuel lines. About 1 hour into the flight, the engine lost power, and the pilot initiated a forced landing in a field. During the landing roll, the airplane nosed over. Postaccident examination of the airplane revealed that the fuel lines were secured with tie wraps. The tie wraps secured the lines in an oval shape, which could introduce air into the fuel system and result in a loss of engine power. No additional mechanical malfunctions or failures were found that would have precluded normal operation.

Text from the NTSB. Open the NTSB docket for WPR12LA182 for the full record.