Sure, but those types of things are stopgap measures that work in a normal, unsanctioned market. Like, they need a part now, but there's none available in the maintenance hangar (or whatever), and it would take a few days to order one, so they ask another airline at the same airport to float/sell them the part. Once the ordered part arrives, they're back to their usual number of parts.
In this case, Aeroflot just cannot get more parts, period. The market for new parts is completely closed to them right now due to sanctions, and secondhand parts will only get them so far. We're talking about brakes here, which wear out to uselessness, so I doubt there's even much (if any) secondhand market for those. Once all the "Boeing brake pads" wear out and run out in Russia, that's it. They can't get new ones without someone violating sanctions. Well, unless they manage to bum spares from countries like China that aren't sanctioning them, or unless someone local can manufacture them to the correct specs.
Regardless, these other options get more and more expensive as time goes on.
> or unless someone local can manufacture them to the correct specs
This will likely happen except for the correct specs part. Sure, it will be manufactured to fit, but it likely won’t be able to be made to the same standard as the official Boeing part.
The impact of this could be absolutely nothing, or maybe Aeroflot planes just end up on runway excursions more often. It could also lead to catastrophic failure and separation of the landing gear bogie causing all sorts of additional trouble.
Aeroflot was widely regarded as worst international airline (on par with say Nepal airlines but for very different reasons) way before any invasion started. Typical russian mentality and alcoholism is simply not a good match to highly structured and regulated environment of very complex machinery.
Everybody I know tried hard when travelling from Europe to Asia to avoid using them, even when they were often the cheapest.
In this case, Aeroflot just cannot get more parts, period. The market for new parts is completely closed to them right now due to sanctions, and secondhand parts will only get them so far. We're talking about brakes here, which wear out to uselessness, so I doubt there's even much (if any) secondhand market for those. Once all the "Boeing brake pads" wear out and run out in Russia, that's it. They can't get new ones without someone violating sanctions. Well, unless they manage to bum spares from countries like China that aren't sanctioning them, or unless someone local can manufacture them to the correct specs.
Regardless, these other options get more and more expensive as time goes on.