The aircraft returned to Manchester as a `` precautionary measure , '' Thomson said in a statement . NEW : Ex - DOT official confirms that burn marks are not next to the batteries . It says it 's sending ` ` an official '' to Heathrow after Dreamliner fire . ` ` Techncal issue '' aboard a second Dreamliner crash , forces it to return to service . A fire breaks out on an empty United Airlines Boeing 737 at Heathrow airport .
NEW : Ex - DOT official confirms that burn marks are not next to the batteries . It says it 's sending ` ` an official '' to Heathrow after Dreamliner fire . ` ` Techncal issue '' aboard a second Dreamliner crash , forces it to return to service . A fire breaks out on an empty United Airlines Boeing 737 at Heathrow airport .