Boeing Redesign of 787 Batteries Approved in Step to Flights
This article is for subscribers only.
Boeing Co. was cleared by U.S. regulators to test its proposed redesign of the 787 Dreamliner’s battery systems, the first step toward resuming service of a plane grounded worldwide for almost two months.
Boeing will be allowed “limited test flights” with two 787s that will have prototype components of the new battery system, the U.S. Federal Aviation Administration said in a statement. Boeing must prove in flight and laboratory tests that the design meets U.S. standards, and the FAA could insist on more changes, the agency said in a statement yesterday.