CNN The Lead With Jake Tapper March 30, 2015 20:04:00
Responds goo any time. he tells the captain you can go now. there's the sound of a seat moving backward and the captain says you can take over. once the captain leaves the cockpit door is locked. >> the co-pilot manipulates the flight monitor controls. >> data suggests the co-pilot reprograms the auto pilot from 38,000 feet to 100 feet the lowest altitude position that can be programmed into the auto pilot of an air bus 320. at 3:29 air traffic control detects the plane's descent. they contact the plane and get no response from the cockpit. an alarm that sounds like this blaring in the cockpit...
Source: archive.org