German airlines now claim they no longer need the two-person cockpit rule, which was created for security purposes in the wake of the 2015 Germanwings disaster.
The rule states that there must always be two people in the cockpit during a flight. It was implemented after co-pilot Andreas Lubitz deliberately crashed a Germanwings flight whilst alone in the cockpit, killing all 150 people on board.
The captain had left the cockpit at the time of the incident and was blocked from re-entering on his return. Now pilots cannot leave without another crew member replacing them.
But the German Aviation Association (BDL) says it wants pilots to be allowed to travel alone in the cockpit, according to The Local.
It believes the rule means the cockpit door is opened more times than it should be, and this could pose a security risk in itself, if unauthorised passengers enter and peform the sort of hijackings which led to the 9/11 terror attacks.
It also claimed doctors are now better equipped to look out for mental health problems in pilots, after the co-pilot in the Germanwings crash was found to have depression.
The BDL said “the risk of an external attack through terrorist or criminal actions still must be assessed as higher,” than an incident taking place in a similar fashion to the Germanwings crash.
The association has asked the Federal Aviation Office to implement the new rule by June 1.