"There is a video surveillance system that allows someone who wants to enter the cockpit to be identified. Only a pilot inside can unlock the door," the spokesperson said.
The system was adopted by leading American and European carriers after the tragedy of September 11, 2001 that resulted in almost 3,000 deaths. EASA, The European Aviation Safety Agency and the FAA, the US Federal Aviation Administration, carried out special measures aimed at preventing the takeover of passenger planes.
Such systems are equipped with secret code mechanisms allowing a person outside the cockpit to turn off the access blocking. However, if the pilot inside was determined not to open the door, nobody outside would be able to get in, sector specialists confirmed.