This photo taken on Jan. 9, 2023 shows a C919 large passenger aircraft, China's first homegrown large jetliner, at Hongqiao International Airport in east China's Shanghai. The world's first C919 aircraft began its 100-hour aircraft validation flight process on Dec. 26, 2022 after it was delivered to China Eastern Airlines on Dec. 9, 2022.(Photo: Xinhua)
This photo taken on Jan. 9, 2023 shows a C919 large passenger aircraft, China's first homegrown large jetliner, at Hongqiao International Airport in east China's Shanghai. The world's first C919 aircraft began its 100-hour aircraft validation flight process on Dec. 26, 2022 after it was delivered to China Eastern Airlines on Dec. 9, 2022.(Photo: Xinhua)
Crew members of China Eastern Airlines have a meeting before a validation flight of a C919 large passenger aircraft, China's first homegrown large jetliner, in east China's Shanghai, Jan. 9, 2023. The world's first C919 aircraft began its 100-hour aircraft validation flight process on Dec. 26, 2022 after it was delivered to China Eastern Airlines on Dec. 9, 2022.(Photo: Xinhua)
A flight attendant of China Eastern Airlines works in the cabin of a C919 large passenger aircraft, China's first homegrown large jetliner, during a validation flight from Hongqiao International Airport in east China's Shanghai to Capital International Airport in China's capital Beijing, Jan. 9, 2023. The world's first C919 aircraft began its 100-hour aircraft validation flight process on Dec. 26, 2022 after it was delivered to China Eastern Airlines on Dec. 9, 2022.(Photo: Xinhua)