FAA approves Boeing battery system design

Regulators on Friday approved a revamped battery system for Boeing’s 787 Dreamliner,a crucial step in returning the jet to service after more than 3 months of grounding prompted by batteries that burned on the planes. The Federal Aviation Administration said it approved a package of detailed design changes,a move that allows Boeing to issue a service bulletin and make repairs to the fleet of 50 planes owned by eight airlines around the world. “Next week,the FAA will issue instructions to operators for making changes to the aircraft and will publish in the Federal Register the final directive that will allow the 787 to return to service with the battery system modifications. The directive will take effect upon publication,” the agency said.