What happened
Approximately thirty minutes after departing from Misawa Air Force Base, the flight crew notified air traffic control regarding an active fire within the primary passenger cabin. Following this communication, the aircraft became uncontrollable and descended into the ocean. The wreckage was located roughly 30 km south of Tomakomai.
There were 35 fatalities resulting from the accident, with no survivors reported among the occupants.
Findings
Investigations into the crash identified an unidentified in-flight fire as the primary factor leading to the loss of control and subsequent impact with the sea.