United Airlines plane catches fire before takeoff in Seattle image

A Boeing 757 operated by United Airlines caught fire before takeoff Saturday night at the Sea-Tac Airport in Seattle.
No one was hurt and all passengers were safely evacuated Sea-Tac spokesman Perry Cooper said.

According to a preliminary investigation, the might be traceable to residual oil in the auxiliary power unit, which is located in the plane’s tail. Firefighers said they discovered flames coming from the auxiliary power unit of United flight 776.

United Airlines and United Express operate an average of 5,574 flights a day to 377 airports on six continents from Chicago, Cleveland, Denver, Guam, Houston, Los Angeles, New York/Newark, San Francisco, Tokyo andWashington, D.C.

In 2011, United carried more traffic than any other airline in the world, and operated more than two million flights carrying 142 million passengers.
United operates nearly 700 mainline aircraft and has orders for more than 270 new aircraft deliveries through 2022, including 50 Boeing 787 Dreamliners, 25 Airbus A350XWBs, and 100 Boeing 737 MAX 9 aircraft.