Weren't these Tupelovs pulled from service...
Or maybe it was just in Russia. I flew several times in the 1990s on Vietnam Airlines Tu-154s. One 154 had a quaint touch with wooden cabinets for storage near seats.
The sturdy-look of the 154 made me think of Sturmovik Il-2 "flying tank" of WWII fame. There was a VN Airlines Tupelov, a 154, I think, crash near Phnom Penh in 1997. I think VN Airlines pulled the Tupelovs from their inventory soon after.