United Flight 175 from Denver to Tokyo was diverted to Seattle on Tuesday . Boeing 's rival Airbus flew a similar airliner -- its highly anticipated A350 XWB -- for the first time on Friday at its facility in Toulouse , France . The unscheduled landing was ` ` due to an investigation of a problem with an oil filter '' 787s returned to service this year after battery troubles grounded them for several months . The unscheduled landing occurred the same day United ordered 20 new Dreamliners .
United Flight 175 from Denver to Tokyo was diverted to Seattle on Tuesday . The unscheduled landing was ` ` due to an investigation of a problem with an oil filter '' 787s returned to service this year after battery troubles grounded them for several months . The unscheduled landing occurred the same day United ordered 20 new Dreamliners .