Primary finding
Probable cause
The pilot’s inadequate preflight inspection, which resulted in a loss of engine power due to fuel exhaustion.
Investigator assessment
Analysis narrative
The pilot planned to perform a 15-minute-long local flight in the airport traffic pattern. During his preflight inspection, he visually checked the fuel quantity in both the left and right tanks, observing there was fuel inside that appeared to be an adequate amount. He did not measure or otherwise quantify the amount of fuel but did see that the fuel quantity gauges in the cockpit indicated 10 gallons. Shortly after departure, during the climbing left turn to crosswind, the engine stopped producing power. He turned back toward the airport and attempted to land on the runway, but there was a tailwind, and the airplane was too fast and high above the ground to safely land so he attempted a forced landing in a mature cabbage field. The airplane’s nose landing gear subsequently collapsed, and the resulting impact resulted in substantial damage to the airplane’s fuselage and right wing. Postaccident examination of the airplane revealed that both of the intact fuel tanks were absent of fuel, and when the electrical system was turned on, the fuel quantity gauges in the cockpit indicated 1/8 and 1/4-full for the left and right tank respectively. Following the accident, the pilot reported that there were no preimpact mechanical malfunctions or failures of the airplane that would have precluded normal operation and stated that the engine lost power due to fuel exhaustion. He further stated that the fuel in the tanks looked like it was deeper than it was due to an optical illusion.