epa04677897 A sign warning of air traffic in the region stands near the small sports airport in Seyne Les Alpes, France, 25 March 2015, in sight of the mountainous region (background) in which a German passenger plane crashed on 24 March. Search crews planned to resume helicopter flights around dawn on 25 March 2015 to the remote mountainside in southern France where Germanwings Flight 4U 9525 from Barcelona to Duesseldorf crashed after a rapid descent, likely killing all 150 people aboard on 24 March. EPA/PETER KNEFFEL