United picked the 787 to replace its Boeing 767 jets and some of its Boeing 777s that are nearing 30 years in age — some of the 767s have already hit that milestone.
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Summary. Miscommunication between pilots led to a United Airlines Boeing 777 losing altitude after departing from Maui. The widebody jet plunged in altitude shortly after takeoff, but the crew was able to recover before any harm was done.
Emirates is the largest operator of the Boeing 777 with 148 aircraft, having operated each 777 family variant. The 777 is produced in two fuselage lengths.
The trijet 777 was later dropped, following marketing studies that favored the 757 and 767 variants. Boeing was left with a size and range gap in its product line between the 767-300ER and the 747-400.
With schedule and cost reductions during the COVID-19 global pandemic, Delta decided to retire the 777 by the end of 2020, in order to “accelerate the airline's strategy to simplify and modernize its fleet while continuing to operate newer, more cost-efficient aircraft.” See the news release.
The 777 also became Boeing's first Fly By Wire aircraft, meaning that the controls' surfaces on the wings and tail were operated by electrical signals sent “by wire” from the controls in the flight deck. The cabin was engineered to be roomier than other aircraft.
The oldest plane in service is from Nolinor Aviation, a charter airline in Canada, that operates a Boeing 737 that first went into use in 1976. Despite its age, this plane still works like any newer one due to numerous updates throughout the years.