(NEW YORK) -- Boeing has a new warning about its Dreamliner jets. This time, the problem is thunderstorms. Boeing says flying certain Dreamliners too close to high-altitude storms could make the jets' engines ice up and lose thrust. The concern is with models 787 and 747 powered by General Electric motors. There have been six incidents since April, GE says, and it is working on new software to fix the problem.
Because of icing concerns and to prevent delays, Japan Airlines has started replacing Dreamliners with other jets on some of its routes. Earlier this year, concerns about battery fires grounded 787s for three months.
Copyright 2013 ABC News Radio