Boeing 787 Dreamliner
Federal officials intend to lift the order grounding the beleaguered 787 Dreamliner after accepting Boeing’s revamped battery system even though the root cause of battery failures that led to a fire on one plane and smoke on another remains unknown.
It’s likely that burning lithium ion batteries on two Boeing 787 Dreamliners were caused by overcharging, aviation safety and battery experts said Friday, pointing to developments in the investigation of the Boeing incidents as well as a battery fire in a business jet more than a year ago.
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.
For the second time in two weeks, a smoking or burning battery has been tied to an emergency aboard a 787. Almost half of the 787s that have been delivered have now been grounded for safety checks.