Accident Overview
On a mission to evacuate a patient, a Beechcraft LR-2 Hayabusa—a version of the Beechcraft 350 Super King Air—departed Sapporo-Okadama Airport at 1123 local time. The flight was destined for Hakodate, carrying two doctors and two pilots.
Sequence of Events
While descending to an altitude of 3,000 feet for approach into Hakodate, the crew encountered poor weather conditions characterized by low clouds and rain showers. The aircraft, registered as 23057 (JG-3057), subsequently impacted the slope of a mountain located near the town of Assabu. The impact site is approximately 40 kilometers northwest of Hakodate Airport.
Aftermath
The aircraft disintegrated upon impact. All four occupants—the two pilots and two doctors—were killed. The Japan Transport Safety Board has been investigating the accident.