According to a Yonhap News Agency report on the 2nd, smoke was seen coming from a South Korean passenger plane just before takeoff at noon that day, prompting the emergency evacuation of all 122 people on board, including passengers and crew. The report stated that the Jin Air passenger plane was originally scheduled to fly from Jeju International Airport in South Korea to Pohang. Citing information from Jin Air, the report noted that the plane was scheduled to depart at 12:25 p.m. local time, but unknown smoke suddenly appeared inside the cabin during the boarding process. A Jin Air official stated that the incident did not result in a fire, and the fire department was not dispatched. According to the investigation, the smoke was caused by overheating resulting from a malfunction in the auxiliary power unit at the rear of the aircraft.