In 2023, the number of safety-relevant events reported to the Swiss Safety Investigation Board (STSB) stabilized at a high level.
According to the STSB, 1803 reports of aviation incidents were registered. This number marks a consolidation compared to the increased number of reports over the last ten years. The STSB has responded to the high number of reports and the associated challenges with various measures to manage capacity. In many cases, technical tools were used to assess the risk. A total of 13 accident and 11 serious incident investigations were initiated, including four cases with a high risk of collision. Of the 17 incidents investigated in detail, a summary investigation was proposed for seven.