What happened
During the flight, the crew encountered an active fire within one of the engines. In response to this emergency, the flight crew initiated a diversion to Tachikawa Air Base to attempt an unplanned landing.
Upon arrival at the airfield, the aircraft performed a belly landing. The impact and subsequent sequence of events caused the plane to come to rest while engulfed in flames. While the incident resulted in zero fatalities or injuries, the engine fire led to the total destruction of the aircraft, which was subsequently declared a write-off.
Findings
Official investigations into the event concluded that the primary factor leading to the emergency landing and subsequent damage to the airframe was an engine fire occurring during the flight phase.