An Alaska Airlines flight traveling from Portland, Oregon, to Ontario, California, had to make an emergency landing Friday night after a portion of the aircraft blew out mid-air.
This type of aircraft comes equipped with a rear emergency exit door, used mainly by international airlines, and has a seat configuration that allows for more passengers on the plane. Most U.S. airliners don’t use that configuration and design the area to appear as a window from the inside of the aircraft.