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Airlines in Japan and the US have grounded dozens of Boeing 777 aircraft after the dramatic engine failure that United Airlines flight 328 experienced over Denver this weekend. According to the National Transportation Safety Board’s ongoing investigation, two fan blades on the plane’s number 2 engine had developed fractures.
The Federal Aviation Administration issued an emergency airworthiness directive that requires “immediate or stepped-up inspections of Boeing 777 airplanes equipped with certain Pratt & Whitney PW4000 engines.” The administration noted that this was likely to result in aircraft being removed from service.
