The co-pilot of the doomed plane may have added a diuretic to the captain’s tea, prompting him to leave the cockpit shortly after the plane reached the required height, German media reported.
President of the German Association of Aviation, Hans-Werner Teichmüller, recently called for a comprehensive medical examination of pilots. According to the expert, more frequent laboratory tests are necessary to detect the possible presence of psychotropic medicines and drugs in their blood.
A number of experts also pointed out that pilots on international flights are overburdened. Many of them make mistakes during the flight due to severe fatigue.
The Germanwings Airbus A320, en route from Barcelona to Dusseldorf, crashed on March 24 in the French Alps killing all 150 people on board.
Data from the "black boxes" recovered at the scene indicated that co-pilot Andreas Lubitz had deliberately crashed the plane.