NEW : Orders to continue ` ` until there 's absolutely no chance '' of locating survivors . NEW : All aboard , should be wearing survival gear , locator beacons . One survivor in hospital , one man found dead , one still missing . 18 aboard were oil workers ; copter ditched into waters off Oman .
NEW : Search to continue `` until there 's absolutely no chance '' of locating survivors . NEW : People aboard chopper should be wearing survival suits , locator beacons . One survivor in hospital , one man found dead , 16 still missing . 18 aboard were oil workers ; copter ditched into waters off Newfoundland .