Shares in the aircraft maker were down sharply after reports that the aircraft experienced an "onboard internal fire" while on the ground.

Boeing's 787 Dreamliner was supposed to be a game changing new aircraft, but battery problems grounded the fleet, costing Boeing an estimated $600 million. Now the Federal Aviation Administration has approved a fix to the battery issue, and the first Dreamliner will return to the skies this weekend in Africa. Ethiopian Airlines is relaunching the "continent's first" Dreamliner in its effort to distinguish itself in the increasingly competitive, increasingly crowded African aerospace market.

The National Transportation Safety Board has completed two days of hearings on the problems affecting Boeing's fleet of 787 Dreamliners. Those jets will have newly designed batteries housed in a fire proof containment box. There are other safety enhancements too.

The transportation safety agency is trying to find out why the certification process for the new passenger aircraft didn't catch a critical problem with batteries.

More insulation between battery cells and a new steel box to contain a potential fire are Boeing's solution for battery woes that grounded the "Dreamliner."

Federal aviation regulators say a pin on the horizontal stabilizer could be prone to corrosion and "premature failure."

Boeing is formally laying out its case for the 787s to be returned to the sky. The Dreamliner has been grounded since last month when batteries overheated. Senior company officials meet with the FAA administrator Friday.

United Airlines is postponing the start of its Denver to Tokyo route flying the 787 Dreamliner in response to the FAA and NTSB review of the鈥�

Japan says an auxiliary battery was improperly connected to the main battery that overheated, forcing an emergency landing.

The A350 is Airbus' version of Boeing's Dreamliner, which was grounded because of fires started by the battery packs. The move makes the launch of the A350 less risky.