An All Nippon Airways Boeing 787 Dreamliner equipped with Boeing’s updated lithium ion battery system experienced a minor electrical issue during a test flight earlier this month, Flightglobal.com reports.
The problem was traced to a loose fastener on an electrical distribution panel, not the new battery or its charging system.
The issue happened on a May 4 proving flight between Tokyo’s Haneda Airport and Chitose. ANA is extensively testing the Dreamliners’ modified electrical systems before returning its 18 Dreamliners to commercial operations.
The airliner was carrying only a pilot and a co-pilot on the test flight. The crew was alerted …