TABSO Flight LZ101 was a scheduled service of the Bulgarian national airline from Sofia, Bulgaria via Budapest, Hungary and Prague, Czechoslovakia (today's Czech Republic) to East Berlin in the German Democratic Republic (today's Germany). The service was operated by the airline's 1960s' flagship equipment, the Ilyushin Il-18B airliner. On Thursday 24 November 1966, the service crashed near Bratislava, the capital of Slovakia (then part of Czechoslovakia), with the loss of 82 lives.