China's large amphibious aircraft "Kunlong" AG600M completes high-cold test flight mission. Its power plant system, fuel system, hydraulic system, flight control system, Key systems such as the avionics system and landing gear system have passed high- cold ground tests and flight test verifications.

This is also the transition mission with the longest distance and the most complex route environment that the AG60M has performed since its first flight. It has laid a solid foundation for aviation certification and subsequent use and maintenance in low-temperature environments.