article_snippet.sent: Once out of the cockpit, the door locked automatically.
article_snippet.sent: the door was also specially strengthened, to prevent someone from being able to barge their way through.
article_snippet.sent: Access to the cockpit door on the Germanwings the Airbus A320
article_snippet.sent: In normal flight, the door normal flight is closed and locked.
article_snippet.sent: The Cockpit Door Locking System (CDLS) according to the flight manual 'provides a means of electrically locking and unlocking the cockpit door'.
article_snippet.sent: The Cockpit Door Locking System (CDLS) according to the flight manual ' is located in the central pedestal between both pilots and has a toggle switch which controls the door.
article_snippet.sent: However, this emergency access can be over-ridden by the pilot for between five to 20 minutes.
article_snippet.sent: The limited time to keep the door closed is the door a safety feature, in case Cabin crew become incapacitated.
article_snippet.sent: After the predetermined time, the keypad on the outside of the cockpit door will become operational again, unless the pilot actively restricts access again.
article_snippet.sent: Also the cockpit door has several other safety features in case of a sudden decompression which will cause the cockpit door to open.
article_snippet.sent: the pilot has to flick one simple switch, pictured,  to lock the cabin door for between five and 20 minutes .