Telecomunicaciones y tecnología
U.S. FAA says approves Boeing 787 certification plan
The agency said it has approved test flights for two 787 aircraft with the proposed battery system improvements.
"We won't allow the plane to return to service unless we're satisfied that the new design ensures the safety of the aircraft and its passengers," U.S. Transportation Secretary Ray LaHood said in a statement.
The planes were grounded after a fire was reported on a parked plane in Boston in January.
(Reporting by Ros Krasny; Editing by Gary Hill)