UPDATE 1-UK probe blames 787 fire on short circuit, urges more battery tests
August 19, 2015 at 11:56 AM EDT
LONDON/NEW YORK, Aug 19 (Reuters) - Britain's air safety investigator on Wednesday blamed a short-circuit involving a lithium-metal battery for a 2013 fire on a Boeing Co 787 Dreamliner parked at London's Heathrow Airport and called for further scrutiny and testing of lithium batteries on all aircraft.