The government work report of March 5 refers to the support of high-end equipment manufacturing, and member of the National Committee of CPPCC and deputy director of Civil Aviation Administration Li Jian expressed his inspiration. Civil Aviation Administration is a key department toDetermine and serve the airworthiness of the large aircraft and to ensure the success of the research and development.Li Jian said that with domestic large aircraft as an example, from technology research and development, to model justification, to assembly and commissioning, it is necessary to go through countless experiments, of which there will be many failures. Only through the unremitting efforts of all parties can we finally realize the dream of great power manufacturing. After ARJ21 new regional aircraft being delivered for only two years, C919 first passenger planesucceeded in the first flight test. Li Jian revealed that China Commercial Airlines strives to obtain C919 China Civil Aviation Airworthiness Certificate by the end of 2020 and strives to deliver the first C919 to users in 2021. CAAC will fully support and serve manufacturers on the premise of ensuring safety . Li Jian suggested that in the future it should focus onFocus on the scientific and technological breakthrough in its follow-up research and developmentand manufacturing on the basis of the completion of the first flight of C919. In the past year, China and the United States officially signed a Airworthy bilateral agreement and initialed a bilateral airworthiness agreement with Europe, which created the conditions for China's civil aviation products going out of the country and going to the world.