Maker of China’s C919 jet weighs supply chain weaknesses amid delivery delays

China’s top civilian aircraft manufacturer is reassessing geopolitical risks to its supply chains – particularly for jet engines sourced from foreign firms – according to a source at the planemaker, as deliveries of its flagship C919 passenger jet appear to be late or delayed this year. The Shanghai-based Commercial Aircraft Corporation of China (Comac) is facing external and internal constraints, including reliance on foreign suppliers for critical components and persistent manpower shortages,...