Sequence of Events
During the final descent to the destination airport, the aircraft experienced a total loss of engine power. The pilot had previously reported fluctuation of the fuel quantity gauges. The pilot planned the cruise flight at 75 percent power and leaned the mixture using the exhaust gas temperature (EGT) gauge.
Pilot and Passenger Statements
A passenger reported that the aircraft "ran out of fuel." No evidence of fuel was found at the accident site.
Maintenance and Performance Information
The company mechanic had informed the pilot that the engine would run lean and that fuel consumption for the airplane varied from 8 to 12 gallons per hour. The total cross-country flight time was calculated at 5 hours and 11 to 19 minutes. According to the Pilot's Operating Handbook, the endurance at 75 percent cruise power is approximately 5 hours and 24 minutes.
Mechanical Examination
No pre-existing mechanical anomalies were found that would have precluded the engine from producing power. Testing of the fuel sending units revealed inaccuracy of the cockpit fuel gauge readings.