Incident Overview
A cargo flight operating between Japan and Seoul encountered a critical engine failure while flying over the region of Daejeon. The left engine exploded and subsequently detached from its mount. In response to the emergency, the occupants bailed out of the aircraft. The unmanned aircraft then dove into the ground, crashing approximately 10 kilometers southeast of Daejeon.
Crew and Aircraft Status
All four crew members who bailed out were unhurt. The aircraft itself was destroyed upon impact with the ground.
Official Findings
The official investigation concluded that the probable cause of the accident was the explosion of the left engine in flight.