He stressed that to enable China's large aircraft to soar in the blue sky, bearing the national will, national dream and people's expectations, it is necessary to give full play to the advantages of the new national system, adhere to the principle of safety first, quality first, and make consistent efforts to make greater breakthroughs in tackling key core technologies, accelerate large-scale and serial development, and firmly promote the building of a manufacturing power, so as to build a socialist modern country in an all-round way We will work tirelessly to realize the Chinese Dream of the great rejuvenation of the Chinese nation. Han Zheng, member of the Standing Committee of the Political Bureau of the CPC Central Committee and Vice Premier of the State Council, attended the event. Thanks to your efforts, the big airplane project has made gratifying achievements. We should focus on key core technologies and continue to work together to tackle key problems. We should put safety and reliability first and eliminate all potential safety hazards. The cause of large aircraft must be well done! To be ambitious, we should all strive to reach the summit of world science and technology. Ding Xuexiang, Liu He, Wang Yong and He Lifeng attended the above activities. C919 large passenger aircraft is the first jet trunk passenger aircraft developed by China in accordance with internationally accepted airworthiness standards and with independent intellectual property rights. It was approved in 2007 and flew for the first time in 2017. After completing all airworthiness certification in September 2022, it won the model certificate issued by the Civil Aviation Administration of China, and will deliver its first aircraft by the end of 2022. The successful development of C919 large passenger aircraft and its model certificate indicate that China has the ability to independently develop world-class large passenger aircraft, which is an important milestone in the development of China's large aircraft industry. Over the past 15 years, China has successfully explored a development path of Chinese design, system integration, global bidding, and gradual improvement of localization, and cultivated a large aircraft talent team with firm faith, willingness to contribute, courage to tackle key problems, courage to fight hard battles, and international vision. It has achieved fruitful results and accumulated valuable experience. (Liu Xinshe)