CNN CNN International May 7, 2015 07:09:00
Incident seems to shed light into the planning, co-pilot, he did before steering the jet into the french alps, the initial findings indicate that lubit practiced the crash during the flight. >> reporter: it appears it was a dry run for what he would do later the same morning on board the plane during flight 9525. lubitz waited until the captain left, locked the door, set it to 100 feet. directed the jetliner into the mountains killing all 150 people on board. awe thought was cnn aviation and increase to the maximum value of 49,000 feet and stabilized again at 35 feet.