Part of the engine rim landed in the front yard of a house in Colorado.
This story has a happy ending. the plane - a United flight - is said to have landed safely at Denver International Airport - where it had departed on its way to Honolulu. Heavy mayday, mayday aircraft - Departure United 328.
Reuters reported the plane had managed to return safely to the airport, and there were no injuries reported from within the aircraft.
United Airlines flight UA328 suffers serious engine failure
Debris also fell near a dog park and on a turf field in a Broomfield park.
A person familiar with the situation told ABC News that investigators will focus on a possible uncontained engine failure based on the vibration observed in video evidence and damage to the containment ring. The Federal Aviation Administration of the United States (FAA) has confirmed that it will investigate together with the National Transportation Safety Board (NTSB). The plane had just taken off for Hawaii from Denver International Airport about 1 p.m. local time when the engine came apart.
Broomfield police said nobody had been injured after the debris rained down from the skies. Both cases involved a serious failure of a Pratt & Whitney PW4077 engine on Boeing 777-200 aircraft. One video apparently shot from inside the plane shows an engine on fire and stripped of its casing.
Jon Ostrower, the editor-in-chief of Air Currents, explained on Twitter that "whatever befell this engine had tremendous energy involved given the near-total disintegration of the nacelle". There were 231 passengers and 10 crew members on board.
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