CNN CNN Newsroom March 28, 2015 14:33:00
So that second person is in here -- >> the flight attendant for example. >> would be in here and could verify the person on the outside of the door before opening it. >> so she doesn't touch this. >> no this is the cockpit door lock. this is for pilots and pilots only. this switch is so i can -- if somebody is at the door i don't want them to come in i can take the switch to lock and that would completely lock out the electronic keypad on that door. i also have a mechanical lock i can go back to the door and lock it. >> reporter: and this -- quite a bit of discussion has been on the altitude o...
Source: archive.org