ČSA Flight 511 was a scheduled passenger flight operated by Czechoslovak Airlines, using a Douglas DC-6B aircraft. The flight had taken off from Prague, Czechoslovakia, and was destined for Frankfurt, West Germany, on March 28, 1961. As the aircraft approached its destination, it encountered treacherous weather conditions characterized by heavy rain and strong winds. The plane was flying at an altitude of approximately 2,000 feet when it suddenly lost control and crashed near Igensdorf, resulting in the tragic loss of all 52 individuals on board, including crew and passengers. The search and recovery efforts that followed were extensive, but unfortunately, no survivors were found.The investigation into the crash focused on the aircraft's handling capabilities in inclement weather and the decision-making processes of the crew. Weather-related factors have since become a key consideration in aviation safety protocols, influencing subsequent changes in training procedures for pilots, particularly regarding their ability to navigate and make safe decisions under poor visibility. This incident also prompted discussions surrounding the safety standards of commercial aviation, particularly in Europe during the late 20th century.