In 2017, 2479 was the ninth generation of leader aircraft in China. It was introduced in 2014 to replace the previous Air China 744 fleet (247224712447, etc.), which was used as a special aircraft. It was not used as the previous generation. Although this generation of special aircraft is still an Air China fleet, and it also flew commercial flights when it was introduced, it began to carry out cabin transformation in May 2015, lasting for two years. It is believed that although the transformed 2479 does not have the same aura as the US Air Force One, However, in terms of communication equipment, cabin layout and security, it must be far more than her predecessor 744 fleet, and it will no longer fly commercial flights.