Sabena Congo, caused thousands of Belgians to flee the country. The Belgian government commandeered Sabena's entire long haul fleet to get the refugees back to Europe. Independence also meant the end of the impressive regional network of routes that the airline had built up in the Congo since 1924. When the new republic began its own airline, Air Congo, in June 1961, Sabena held 30 percent of that airline's shares. The Douglas DC-6Bs remained in service with Sabena in the mid-1960s although they were no longer used on the airline's main routes. The Boeing 707s and Caravelles became the mainstay types
Sabena Flight 503 communication was cut off. The aircraft had crashed somewhere in the mountains of Rieti, Italy North-East of Rome and was now missing. Sabena itself got notified about the missing aircraft that same night at 23:15 but would not make an official statement until the morning of the following day. The airplane had crashed somewhere in the mountains of Rieti, Italy North East of Rome which were known for being difficult to access and also lay in a nature reserve where wolves roamed. The Italians immediately started a search and rescue mission to locate the missing aircraft and rescue its occupants.