Air China Flight CA983 (Beijing-Los Angeles, Boeing 777-300ER) takes off from Beijing Capital International Airport at 21:13 Beijing time on March 4. During the flight in Russian airspace, the fire information in cargo compartment after the aircraft appeared, and the crew disposed of the fire in time according to the fire disposal procedure. To ensure safety, the flight was safely prepared to land at Anadel Airport, Russia, at 2:55 Beijing time on March 5, and an emergency evacuation procedure was implemented. At present, man-machine safety, all passengers have rested in the terminal. After landing, it was found that the cargo hold of the aircraft was normal and there were no signs of overfire. It was preliminarily judged that the aircraft fire alarm information was faulty. Air China has dispatched planes to Anadel Airport in Russia to do a good job in passenger follow-up transport. Air China apologizes for the inconvenience caused to passengers.