Unlocked mode is what a pilot would use to.
Pilot cockpit door is locked.
After stepping out of the cockpit halfway through the trip to go.
The final 30 minutes of the germanwings jet one of the two pilots of the germanwings plane that crashed in the french alps was locked out of the cockpit according to reports.
In normal mode the cockpit is locked but can be accessed after a 30 second delay by touchpad should the cabin crew get no response from inside.
Paris afp systems that lock a cockpit door have existed since the 1980s and strict procedures became standard after september 11 2001 to prevent attackers from taking control of civilian.
The pilot of a delta air lines flight from minneapolis to las vegas found himself on the wrong side of the cockpit door on thursday.