What happened
While en route, the pilot contacted air traffic control to report that the aircraft had lost power in one of its engines. Shortly after this transmission, air traffic control lost all radio contact with the pilot.
Witnesses observed the airplane circling before it descended into a field. The aircraft made a hard landing and subsequently rolled over, which caused the fuselage to collapse.
The investigation
An examination of the aircraft revealed rotational damage on the right propeller, while the left propeller showed relatively no damage. Investigators inspected the engines and found that fuel was present in both the fuel pump and the fuel injector unit of the right engine. In contrast, these same components of the left engine were found to be absent of fuel. Due to fuel leakage from the tanks caused by the impact damage, investigators could not determine the exact amount of fuel on board at the time of the accident.