Uh oh, here come the big guns. A team of U.S. aviation experts arrived in Japan on Friday to inspect the Boeing 787 Dreamliner jet that was forced to make an emergency landing last week as the aircraft were grounded worldwide for battery issues. The five representatives from the U.S. National Transportation Safety Board, the Federal Aviation Administration, and Boeing are working with Japanese authorities to investigate the aircraft, as regulators in Japan say it’s unclear when the plane can return to the air. Sources said the U.S. investigation is focused on the Japanese-made batteries—and there’s no indication the ones made by American manufacturer United Technology Pratt & Whitney were involved.
