NEW : Ex-DOT official tweets that burn marks are not next to the batteries . FAA says it 's sending `` an official '' to Heathrow after Dreamliner fire . `` Techncal issue '' aboard a second Manchester last January , forces it to return to airport . A fire breaks out on an empty Ethiopian Airlines Ethiopian Airlines 787 at Heathrow airport .
NEW : Ex-DOT official tweets that burn marks are not next to the batteries . FAA says it 's sending `` an official '' to Heathrow after Dreamliner fire . `` Techncal issue '' aboard a second Dreamliner Friday , forces it to return to airport . A fire breaks out on an empty Ethiopian Airlines Boeing 787 at Heathrow airport .