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Staff Report, Hulunbuir, January 19 After 20 days of testing, the special flight test mission of domestic C919 large passenger aircraft has been successfully completed recently.
The passenger plane flew to Hailar Dongshan Airport in Hulunbuir City, Inner Mongolia on December 25 last year to carry out a special task of alpine test flight.
During the test flight, the local minimum temperature was close to -40 °C.
It is understood that the alpine test flight is an extreme weather test that civil aircraft must pass to verify whether the functions and performances of aircraft systems and equipment meet seaworthiness conditions under extremely cold conditions.