A Boeing 787 flying from Denver to Tokyo diverted to Seattle because of an oil filter issue, a United Airlines spokeswoman said.
Boeing conducted another 787 test flight on Monday as it tries to find out what caused battery problems that have knocked the plane out of airline service.
Boeing won permission on Thursday for test flights of its 787 as it tries to fix battery problems that have kept the plane grounded.
Japan’s Civil Aviation Bureau is sending investigators looking into problems with Boeing 787 batteries to Seattle, where the aircraft are assembled.
Scott Mayerowitz chronicles the Boeing 787 Dreamliner project.
Some frequent fliers say they aren’t worried about safety aboard Boeing’s problem-plagued 787 aircraft, while many less-seasoned travelers are often unaware of what model of plane they’re flying on.
Lithium batteries that can leak corrosive fluid and start fires have emerged as the chief safety concern involving Boeing’s 787 Dreamliner, a problem that apparently is far more serious than government or company officials acknowledged less than a week ago.
Boeing delivered LOT Polish Airlines’ first 787 Wednesday with a blessing from a Catholic priest from a largely Polish congregation in Seattle.