Jet engines fail, it happens quite often and usually evn the people riding on the plane have no idea that they have shut one down . . .
I remember once I was talking to a Russian immigrant and he told me Aeroflot routinely continued passenger air operations with failures that would ground aircraft in the West - things like continuing scheduled service if one engine was down - after all, the aircraft still had 3 more, right?
Oh, and on Russian planes it was not unheard of to get lavatory overflows if the plane banked steeply, so you didn't want to sit in a row close to the head.
My ONLY experience with an Aeroflot flight was indirectly on one of my trips to Japan - we were taking off from, IIRC, Seattle, when an Aeroflot flight landing on a parallel runway blew a tire - it must have been pretty loud, since even during takeoff the BANG! got everyone's attention on
our plane.