Planes get all sorts of checks done based on hours of flight and we're talking various levels starting at every-50h for certain things and going all the way to full engine overhauls every few tens of thousands of hours of flight (actual value depends on the engine).

Even shitty-shit amateur prop planes are incredibly maintenance intensive and it's worse for commercial aviation.

The amount of maintenance done for trains is nowhere comparable to that and the reason is pretty obvious: a mechanical or structural failure in a plane in use has a very high likelihood of killing everybody in it, whilst for a train, it's only some kind of failures in some subsystems in highspeed trains that might cause accidents with that many dead.

"Assertive laughable ignorance" doesn't even begin to describe the quality of your posts on this subject.