An Ethiopian Airlines 787 Dreamliner was sitting empty on the tarmac at Heathrow Airport in London, minding its own business, when it caught fire.

Four months after being grounded for safety inspections, Boeing's 787 Dreamliner flew safely from Houston to Chicago today.

Japan has given the green light to Boeing's 787 Dreamliner. Japans two biggest airlines, Nippon Airways and Japan Airlines, may resume flying the aircraft, which has been grounded since January.

The Federal Aviation Administration has approved Boeing's plans for new safety tests that could get its troubled 787 Dreamliner back in the air as early as this spring.

Big battery packs are a balancing challenge — if the cells work unevenly, one can overheat and burst into flames.

Boeing has apparently been aware of the problems with the troublesome lithium ion batteries on its 787 Dreamliner for some time.

The Federal Aviation Administration has ordered a safety review of the lithium ion batteries in Boeing's U.S. fleet of Dreamliner 787 planes.