Exactly how this works the door to the cockpit of an Airbus – New Technology

       

The French investigation into the circumstances surrounding the crash Germanwings Airbus A320 plane shows that the co-pilot was alone in the cockpit and that he refused to open the door when the plane’s captain knocked and wanted to get back into the cockpit.

Since the terrorist attack in the US in 2001, there are rules that say that the doors should be lockable, protection against, for example, terrorists and hijackers.

The requirements of an aircraft heavier than 45,500 pounds and can take more than 60 passengers on board.

Two pilots usually fly with the larger seating plan as it crashed Airbus plane. It is permissible for one of them leaves the cockpit while driving, for example, to go to the toilet, said Gunnar Ljungberg, head of flight safety department at the Swedish Transport Agency.

– But then also have certain requirements to be met, he said.

Either a member of the cabin crew go into the cockpit and stay there until the pilot seated at the controls opens the door for the second pilot.

Or must the door to the cockpit going to open from outside, for example by using a secret code. The idea is to be able to enter if the pilot gets sick. It has been calculated with a “heart attack” scenario describes Gunnar Ljungberg.

– But even if the door can be opened with the code so it can pilot that is left deny access through an active action. The idea behind it is to prevent someone hijackers take over the plane, he said.

If the pilot rather do nothing to open door a short time.

In this case, state investigators that the pilot refused to open the door. The pilot can thus denying his colleague, the plane’s captain, entry by blocking the emergency opening.

The airlines are obliged to comply with these EU requirements but may still have different procedures and routines. A video from the aircraft manufacturer Airbus, from the spring of 2014, shows how the door works when handling the Airbus aircraft have reinforced doors.

But exactly what routines used on board the airline Germanwings Airbus is still unclear.