Flight Planning
The pilot reported preflighting the aircraft and determining that there was sufficient fuel to complete two more skydiving flights. The pilot planned a fuel consumption rate of 12.1 gallons per hour. However, after installation of a new engine, the actual fuel consumption was 12.8 gallons per hour.
Event Sequence
During the second of the two planned flights, the pilot had to make three passes instead of the usual one. While approaching the airport, the engine lost power due to fuel exhaustion. The pilot attempted to reach the runway but landed short on plowed terrain. The wheels dug into the plowed ground, causing the nose gear to collapse and the aircraft to nosed over.
Findings
The investigation found that the engine lost power from fuel exhaustion. The pilot had planned for a fuel consumption rate of 12.1 gallons per hour, but the actual rate after the new engine installation was 12.8 gallons per hour, resulting in insufficient fuel for the flight.