Analysis and safety levels

Main trends of Safety in BULATSA for 2021

The registered occurrences during the 2021, related to the safety in operational activities when providing Air Traffic Services (ATS), are as follows:  

• No aviation occurrences have been registered with severity class АА/А and B/C (accident/serious incident and major/significant incident with contribution of ATS units).
• 6 incidents have been registered with severity class E, with contribution of ATS units, which had no safety consequences.
• 798 incidents without contribution of ATS units, which are occurrences with severity class Е – without safety consequences, and severity class D – classified as unidentified occurrences without safety consequences.

Number of aviation incidents – trends:

For the period from 1997 to 2021, based on smoothed graph data for five and ten years respectively, there is a steady trend of retention of the level of safety for the last years.

In addition to the above, as a result of the annual SMS maturity survey – „EUROCONTROL CANSO SMS Standard of Excellence Measurement in 2021“, has been reported a result with level D (Assured: Evidence is available to provide confidence that SMS processes and/or requirements are being applied appropriately and are delivering positive, measured results) for all 17 measured areas except for „Safety Surveys and SMS Audits” – level C (Managed: SMS processes and/or requirements comply with ICAO Annex 19 and are formally documented and consistently applied).