yeah i have seen. this is the supply chain issue and C919 must be localized as soon as possible just to eliminate further bottleneck.. Some issues might arise before delivery of XX component, causing the receiving team to wait for months without receiving the aircraft; others might have minor problems as soon as delivery.
as per 老王RR涡扇花动机, this is major reason COMAC decided to go alone for C929. majority of the parts/components and high end composite sourced from domestic suppliers.
