Pursuits

Boeing 787 Battery Tests Didn’t Ensure Against Fire, NTSB Says

Lock
This article is for subscribers only.

Tests of Boeing Co.’s 787 Dreamliner batteries weren’t adequate to ensure that they wouldn’t overheat or burn, the top U.S. aircraft-accident investigator said after a two-day hearing.

Officials from Boeing and the U.S. Federal Aviation Administration, which approved the batteries, also said at the National Transportation Safety Board hearings that concluded yesterday that the tests didn’t anticipate the two failures that led to the grounding of the company’s newest airliner.