Have GE and Rolls Royce stopped sending engines to Russia for aircraft? I assume so.
Hard to retrofit a Boeing to use Russian engines - I can’t imagine the programming required to work with the operating systems.
Can’t imagine the programming? And how to get parts? Guess who can? China and India. Chinese programmers who work at the Chinese branch of Boeing. That’s the way they’ll help, not with PLA soldiers.
Yes, cut off ... only non-sanctioned registered owners get support