This is a problem, and this has deeper ramifications. If this happened, other known sanctions with American and European are just a matter of time. China isn't Iran nor even Russia, it's just impossible to sustain fleet so large on scavenging.
Knowing the US sales of aircraft parts will be the next thing to cut. Then they will stop sales of A320NEO with CFM and Pratt & Whitney engines. All US engine exports will be cut. And then they will try to convince Rolls-Royce to stop engine supplies next. They can threaten Rolls-Royce with a boycott of their exports to the US and expropriation of their Allison subsidiary in the US to make them concede.
Iran is more sophisticated than you give them credit for. Iran makes their own turbine blades for CFM-56 engines to service their Airbus aircraft for example. They can maintain their engines by themselves.
The Chinese government should just make a crash program to make its own consumables and parts to supply the existing fleet. The thing is, the air industry isn't as critical for China as for Russia because of HSR.
If Russia could maintain the Superjet flying, China can maintain its Boeing and Airbus aircraft.
If engines for Boeing airline jets are affected, then thousands of Boeing jets in China will face maintenance and engine overhaul problem. And not only that, Airbus jets are also using engines with US technologies, so delivery of new Airbus jets will be affected as well.
Exactly.