Background
A lineman at the fueling facility was tasked with refueling aircraft. His training consisted of approximately 30 minutes of reading the company maintenance manual on refueling procedures for different company aircraft, followed by a brief period of on-the-job training.
Accident Sequence
Shortly after takeoff, both engines lost power. The pilot executed a wheels-up landing in an open field. The aircraft was destroyed by impact and fire.
Investigation
An investigation revealed that the aircraft had been refueled with Jet-A fuel instead of the required 100 low lead avgas. The lineman had inadvertently used the Jet-A fuel truck, which was identical to the Avgas truck except for a decal approximately 4 feet by 16 inches identifying the fuel type. When the lineman went to refuel the aircraft prior to the accident flight, he proceeded to the parking space where the Avgas truck was normally parked. On that occasion, however, the Jet-A fuel truck was in that space.