The Boeing 737 was a two engine jetliner developed by Boeing in 1968. This model is a 737-200 that was manufactured in 1977. Even today, later versions of the 737 are the backbone of many airline fleets. The 200 series of 737, however, are known to be some of the most durable planes of the 737 family, and this plane in particular flew almost 70,000 hours before it was retired. This plane was originally owned by Southwest before it was purchased by Ryan International, a small Wichita-based airline.