Earlier quoted context omitted.
Container shipping is about to be reduced, Maersk just announced that they would only ship food to Russia going forward. Aviation in Russia might come mostly to a halt. About 500 airplanes are leased and have to be returned within a month to the leasing companies, the rest is running out of spare parts quickly.
So now we are all of a sudden in the "might come to a halt" hypothetical. Ok. First of all, at least 40% of the planes are home-built, so aviation in Russia most certainly will not come to a halt. Then, how do you picture 500 planes getting returned and leasing companies instantly re-leasing them to other customers to keep their own business afloat? Even if that does happen, worst case, that will reduce Russian air t…
Home-build - maybe, but not without parts from the US\EU, not to mention most of the production equipment is not Russian too and you have to maintain it or replace it at somepoint.
Oh and to build something you need materials - some are local, some will have to be replaced if possible.
This will be a huge problem, especially in a country with strong corruption tradition.