United Airlines sent an alert to pilots after a member of cabin crew mistakenly posted information that included flight deck door access codes on a public website. Flight crew were asked to visually confirm the identity of anyone trying to access the cockpit until the issue was resolved. The codes have now been changed. A spokesperson for the airline said: “The safety of our customers and crews is our top priority. United utilises a number of measures to keep our flight decks secure beyond door-access information.”
Since 9/11 it is a requirement to keep flight deck doors locked just prior to engine start until engines have been shutdown. Most airlines have keypad systems to allow entry into the flight deck if the flight crew become incapacitated, however flight crew will always have the option to deny access.