Swiss Transportation Safety Investigation Board
The Swiss Transportation Safety Investigation Board (STSB, ; ; ) is a government agency of Switzerland. It investigates civil aviation accidents and incidents and cableway, roadway, waterway, and railway accidents. The head office is in Bern. The aviation division is based at Payerne Airport in Payerne and the rail/navigation division is based in Bern. History. The Swiss Accident Investigation Board (; ; ) was established on 1 November 2011 when the Aircraft Accident Investigation Bureau and the Investigation Bureau for Railway, Funicular and Boat Accidents merged. On 1 February 2015 the name was changed to its current name. Swiss Transportation