Hey there, time traveller! This article was published 29/04/2013 (4448 days ago), so information in it may no longer be current. Boeing's 787 Dreamliner was cleared to fly last Thursday. The Federal Aviation Administration lifted a ban on passenger flights that it imposed in January after two battery malfunctions in the new jets raised serious safety concerns. The FAA approved Boeing's plan to modify the 787 battery system and flights are expected to resume within days. So, the FAA says the Dreamliner is safe. But will travelers buy that? We think so. Here's why. The innovative, fuel-efficient Dreamliner ran into trouble because it is the first passenger jet to make extensive use of lithium-ion batteries. Those batteries, widely used in laptops and cellphones, have a history of occasionally overheating. When Boeing designed the aircraft, the company and its suppliers devised a series of tests to ensure the battery system would be safe for flight.