In this image take from video provided by Chad Schnell, the engine of United Airlines Flight 328 is on fire after after experiencing "a right-engine failure" shortly after takeoff from Denver International Airport, Saturday, Feb. 20, 2021, in Denver, Colo. Federal regulators are investigating what caused the catastrophic engine failure on the plane that rained debris on Denver suburbs as the aircraft made an emergency landing. (Chad Schnell via AP)