United halts return of Boeing 777s that were grounded over engine flaw - Business Insider

The aircraft that used Pratt & Whitney 4000 engines were grounded after an incident last year when a plane shed debris over Denver.

United Airlines is delaying the return of Boeing 777 planes that contain the same engines as one that failed and shed debris over Denver last year. CNBC reported the news on Friday. Dozens of plane… [+1645 chars]

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