China Airlines Flight 642 (CI642) was a China Airlines flight operated by McDonnell Douglas MD-11 aircraft (registration number B-150). On August 22, 1999, flight CI642 carrying 300 passengers and 15 crew members had an accident while preparing to land at Hong Kong International Airport in severe weather conditions under the influence of Typhoon Sam; During landing, the right wing broke off and caused the aircraft to flip over, leading to a fire that resulted in the death of three passengers and serious injuries to 50 others on board. Due to the foresight of the air traffic controller of Hong Kong International Airport, an emergency service alarm was issued before the aircraft stopped, so that the airport fire brigade quickly arrived at the scene for rescue. In addition, the storm at that time slightly slowed down the fire, otherwise the number of accidental casualties would be more than that. The China Airlines Flight 642 crash is the first serious accident since the opening of the new Hong Kong International Airport, and has therefore attracted attention from all walks of life. Although it was a flight operated by China Airlines, the B-150 was in the stage of flying to a destination where China Airlines was unable to operate under the livery of Huaxin Airlines at the time of the incident