$RYCEY The 777 is a large, twin-aisle plane typically used to fly long distances. Its first passenger flight, operated by United, was in 1995. So far, Boeing has delivered more than 1,600 of the jets to customers around the world, roughly 200 of which are freighters. Only 174 of the 1,600 jets were equipped with Pratt & Whitney engines, the last of which was delivered to the South Korean carrier Asiana Airlines in 2013. More than 1,250 of the jets were equipped with engines made by GE Aviation, with the remaining using engines made by Rolls-Royce.