Photo taken on April 20, 2017 shows the C919, China's first domestically-built large passenger jet, in Shanghai, east China. The maiden flight of the C919 is scheduled for May 5, the Commercial Aircraft Corporation of China (COMAC) said Wednesday. The maiden flight will take place in the Shanghai Pudong International Airport. "If weather conditions do not allow it, the maiden flight will be rescheduled," the company said. (Xinhua/Ding Ting)