They are not Soviets who counts statistics for air crashes.
Russian civilian airliners are built military way with a lot of structural integrity and most systems dubbed.
For that reason if Tupolev airliner force lands on an abandoned WWII airsrip and ploughs a few hundred yards into thick forrest all passengers are just walking away from that crash. So does an aircraft itself taking off from that same place a week later after some repair.
A lot are still flying in Asia and Africa after 40 years where Boeing will fall apart lacking any proper maintenance.
You really don't know what you are writing about. Any commercial or military aircraft requires “proper” maintenance to remain airworthy. There are ancient Boeing 707s still in service as freighters and I think a few are still in passenger service with foreign airlines.
You can try to define “operational environment” in a way that will give you whatever result you want, but there is no way I would ever willingly fly in a TU-154 or an IL-76.