According to Xinhua News Agency, Southwest Airlines of the United States reported on the 5th that its Boeing 737-800 aircraft was forced to cancel its flight on the 4th due to engine fire, fortunately no one was injured. The report states that the aircraft's flight number is 1928 and was originally scheduled to take off from Lubbock Preston Smith International Airport in Texas, United States. After receiving a prompt stating that there may be a problem with the engine, the crew safely stopped takeoff. The local fire department said that one of the two engines of the passenger plane caught fire, but no one was injured. According to ABC, this passenger plane has 154 passengers and 6 crew members on board. After the incident, Southwest Airlines dispatched a passenger plane from Dallas, Texas to replace the plane and complete the flight. The Federal Aviation Administration of the United States said it is conducting an investigation into this matter.