Ops-Normal.org

Turkish Airlines, which has around 435 planes in its fleet and another 100 on order, is set to announce a major order from Airbus for 345 planes. It will likely be reported in many places as 355 planes, folding in 10 Airbus A350-900s whose purchase was already announced.

Turkish seems to have quite a few incidents/accidents so maybe they are accounting for attrition/replacement more than expansion.

PP

They certainly have a very comprehensive route network. I consider my geography knowledge to be pretty good, but they fly to places even I have never heard of, and with big aircraft, too!