Storyline: China's domestically developed large passenger aircraft, the C919, launched a commercial service on the Shanghai-Lanzhou route on Monday, marking its first flight to a plateau airport. At 11:08, Flight MU9179 landed at Lanzhou Zhongchuan International Airport in Lanzhou, northwest China's Gansu Province, located at an elevation of 1,948.7 meters. The flight, operated by China Eastern Airlines from Shanghai Hongqiao International Airport, marks the official launch of a daily round-trip flight between the two cities. The launch expands the C919's operational network to key hubs in China's northwest region while collecting valuable data to improve its performance continuously. "TheThe C919 has demonstrated excellent engine performance and operational stability in high-altitude environments, proving that it is fully able to meet commercial operation standards required for high-altitude airports," said Zhang Shaobo, captain of the C919 jet. The C919 is a narrow-body passenger aircraft with a maximum seating capacity of 192. It is China's first self-developed trunk jetliner, built in accordance with international airworthiness standards and featuring intellectual property rights registered independently. China Eastern Airlines, based in Shanghai, currently operates 13 C919 jets on 15 routes that connect 13 Chinese cities. Over the past two years, the C919 fleet of China Eastern Airlines has logged nearly 43,000 safe flight hours, operated more than 17,000 commercial flights, and handled more than 2.45 million passenger trips, with an average passenger load factor of over 85 percent. Shotlist: Lanzhou City, Gansu Province, northwest China - Dec 1, 2025: 1. Various of C919 jet taxiing, ground staff working 2. Various of people getting off C919 jet 3. People holding congratulatory sign, posing for group photo 4. C919 jet, sign of China Eastern Airlines 5. SOUNDBITE (Chinese) Zhang Shaobo, captain, C919 jet: "The C919 has demonstrated excellent engine performance and operational stability in high-altitude environments, proving that it is fully able to meet commercial operation standards required for high-altitude airports." 6. Various of C919 jet, ground staff 7. Various of airport staff welcoming passengers, holding signs, commemorative tickets 8. Various of airport, board showing flight information [Restrictions: No access Chinese mainland]