关键词:  , 国产航化品；适航审定；产业链安全；大飞机；体系融合；产业生态

Abstract:  The airworthiness certification of domestic aviation chemicals (hereinafter referred to as aviation chemicals) lags behind their industrial development, which has become a critical bottleneck restricting the safe development of the aviation industrial chain. Firstly, based on a review of the technical classification system for aviation chemi鄄 cals, this paper systematically examines the limitations of the current certification regulations, China Civil Avia鄄 tion Regulations (CCAR) CCAR-53 and CCAR-55, including outdated management, poor alignment with the CCAR-21 framework, a singular certification pathway, and insufficient international mutual recognition. Sec鄄 ondly, the paper conducts an in-depth analysis of the core dilemmas faced by domestic aviation chemicals, such as the lack of data, inefficient collaboration, difficulties in installation, high costs and a shortage of qualified professionals, among others. Finally, it is proposed that, through diversified pathways such as promoting the modernization reform of regulations, deepening type certificate (TC) certification, and exploring alternative ap鄄 provals, among others, a closely coordinated industrial ecosystem can be built, and domestic aviation chemicals can be supported in achieving the strategic leap from compliant use to a preferred brand. The research results can provide a systematic solution that combines theoretical height and practical feasibility for breaking the air鄄 worthiness certification dilemma of domestic aviation chemicals.

Key words:  domestic aviation chemicals, airworthiness certification, industrial chain security, large aircraft, system integra tion, industrial ecosystem