Accident Overview
During the initial climb after takeoff, both engines lost power. The flight crew executed a forced landing in a plowed corn field, which resulted in substantial damage to the aircraft.
Fuel Mismatch Discovery
A post-accident inspection revealed that the airplane had been refueled with 101.5 gallons of Jet A fuel instead of the required 100LL fuel. Jet A is a kerosene-based fuel used in turbine engines, while 100LL is an aviation gasoline for piston engines.
Refueling Process
The FBO employee who performed the refueling reported using a rubberized adapter to fit the fuel nozzle into the aircraft's fuel inlet. He stated that the captain did not specify what type of fuel should be added, only the quantity. The first officer signed for payment of the fuel but did not notice the type of fuel added, which was indicated on the Master Receipt and the invoice.
Preflight Actions
The captain did not drain the fuel tanks during the aircraft preflight inspection and did not detect the smell of Jet A when visually inspecting the fuel quantity in the main fuel tanks prior to takeoff.