The company pioneered jet service to gravel runways , and helped develop the Boeing 737-200 Combi aircraft configuration which allowed mixed freight and passenger loads on the main deck of the aircraft. By the spring of 1984, the Wien route network extended from Point Barrow in north to dozens of Alaskan communities as well as to cities in the lower 48 states in the western U.S. including Albuquerque, (ABQ), Boise (BOI), Denver (DEN), Phoenix (PHX), Oakland (OAK), Reno (RNO) and Salt Lake City (SLC). Their main bases were located in Anchorage and Seattle.