Airlines ground dozens of Boeing 777 planes after engine failure over Denver
United Airlines, Korean Air, Asiana Airlines, All Nippon Airways and Japan Airlines all use Boeing 777s that feature Pratt & Whitney 4000 engines. |!| Chattanooga
United Airlines, Korean Air, Asiana Airlines, All Nippon Airways and Japan Airlines all use Boeing 777s that feature Pratt & Whitney 4000 engines. |!| Chattanooga