How hard, and costly, is it for an airline to make a transition from an Airbus type to a Boeing type ? Or, does the new type's benefits outweigh the cost of transition ?
Or does it really depend on the airline's financial level ?
For example, UL currently has some 16yr old 343s in its fleet. As they haven't ordered the 350 either, 772 comes out as the best replacement choice. But is this an economically viable move to make ?
UL switched to 332 from L1011 in 1999 and currently operates an all Airbus fleet of 320,332 and 343. Past operated types include 707,742,732,733 and L1011, but they have been all Airbus since 2000.