I've heard of it happening with tanks, but not with planes yet.
I can assure you it is happening right now. Like the previous poster alluded to, anytime someone can consistantly go 70-80 kills without reply then that is something that is very, very wrong and has little to no counter.
People did used to have similar stats in tanks because A) People didn't know how to deal with them and B) people had to co-ordinate to take them down. But now tanks aren't the problem they used to be as people have learnt that just 2 Assault players can easily take a tank down or at least cause it to retreat. Every class in BF1 has access to tools/grenades that can damage a tank.
But planes? Nope, sorry. Not one class has access to one tool or gadget that allows any damage to planes other than shooting them with their gun, which is comparable to shooting a pea-shooter at it. Even if you do damage it, the plane can fly off and repair (
in the fucking air), turn 180 degrees and press one button/key and get a insta-kill and a highly likely multi-kill. The only counter on the battlefield that a infantry soldier can use to damage a plane is the AA, which handily enough for 70-80 to nil plane players, can be completely blown off the map and thus be rendered
un-usable. You can't even repair the station with the useless repair spanner.