The co-pilot of the Germanwings flight 4U9525, who appeared to have deliberately crashed the plane in the French Alps, had passed all tests set by parent company lufthansa, a spokesman told Xinhua news agency on Friday and declined to comment on his mental condition. As the company was unable to access the co-pilot’s clinical data that has been reported by the media, lufthansa had no comment to offer on those media reports, the lufthansa spokesman said. German news site Spiegel Online reported earlier that after the house search, investigators found evidence that the co-pilot was mentally ill.