CNN Morgan Spurlock Inside Man March 27, 2015 04:35:00
Reinforced cockpit door and we want to give you a closeup look how it works. the 737 was mothballed less than a year ago. the locking system on these reinforced doors is similar to the locking system you would have in an airbus 320, the plane that crashed if france. this is the director of southern california aviation. what is this door made of? >> this is an inch and a half thick kevlar. >> this has a key override lock system, too. it has what the airbuses a, a numbering system. what is that for in >> this is the key pad punch where you punch in the code to unlock this door. >> what can destr...