Core Insights - The Civil Aviation Administration of China (CAAC) has issued a Supplemental Type Certificate (STC) to Wuhu Diamond Aviation Engine Co., Ltd. for the installation of the domestically developed AEC2.0L engine on the DA42NG aircraft, marking a significant step for the company in entering the international general aviation market [1][3] - The AEC2.0L engine is a four-cylinder, four-stroke piston engine with a maximum takeoff power of 123.5 kW, and it is the first aviation heavy oil piston engine in China to complete airworthiness certification according to CCAR-33 regulations [3] Industry Developments - The East China Regional Administration has been actively supporting the airworthiness certification needs for key components of civil aircraft, promoting self-sufficiency and ensuring smooth operations [6] - The administration will continue to enforce strict quality supervision for batch production, ensuring the initial quality of domestic aircraft and components, thereby advancing the high-quality development of the domestic civil aviation industry [6]