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Safety - Bulgaria

Download Report

PRB monitoring

  • In 2025, Bulatsa achieved the planned maturity levels set out in its performance plan for all five components of the EoSM. When looking ahead to end of RP4, Bulatsa has already achieved 4 out of 5 EoSM targets, needing improvement in Safety Risk Management component to reach the RP4 targets.

  • Bulgaria has not included any airports in their RP4 performance plans, thus not reporting on runway incursions during the reference period.

  • The rate of separation minima infringements (SMIs) at State level was 2.93, and at ANSP level 2.71. Both indicators were below the Union-wide average.

Effectiveness of Safety Management (EoSM) (KPI#1)

NoteFocus on EoSM

In 2025, BULATSA met the planned maturity levels set out in its performance plan for all five components of the EoSM. When looking ahead to end of RP4 targets, BULATSA has already achieved 4 out of 5 EoSM targets, needing improvement in Safety Risk Management component to reach the RP4 targets.

As described in the monitoring report, although relatively conservative targets were initially set for 2025 to maintain a resilience buffer in light of the unstable geopolitical situation east of the Sofia FIR, as well as the anticipated increase in traffic demand, actual performance has surpassed expectations in several areas. In particular, the components related to Safety Policy and Objectives, Safety Assurance, Safety Promotion, and Safety Culture have already reached higher maturity levels. This demonstrates a higher-than-anticipated level of effectiveness and robustness of the Safety Management System under conditions of both operational growth and external uncertainty.

As for the measures put in place to achieve the safety performance targets, the monitoring report states that in 2025 BULATSA continued the systematic implementation and enhancement of its Safety Management System through a combination of structured governance, data‑driven monitoring, and organisation‑wide engagement. A key measure is the mature Safety Culture framework, built on biennial Safety Culture Surveys, supported by formal action plans, Safety Monitoring Reports, and Safety Council oversight. Safety culture activities cover the entire organisation—including operational and support staff—and are reinforced through workshops, safety bulletins, and targeted communication campaigns. BULATSA also maintains strong management and governance involvement, with regular Safety Council meetings, regular daily operational briefings with the management participation, and direct engagement between senior management and operational staff. Safety performance is continuously monitored through dashboards (Power BI, e‑TOKAI), enabling data‑driven decision‑making. In 2025, BULATSA demonstrated tangible progress in safety performance through the following achievements:

  • Strengthened Just Culture framework, including updated guidance, formal processes for behavioural assessment, and enhanced transparency and staff trust.

  • Enhanced human performance management, notably through the implementation of the Stress and Fatigue Risk Management Programme and associated 2025 action plan.

  • Improved data‑driven safety oversight, with expanded use of Power BI dashboards, integrated reporting systems, and systematic KPI monitoring.

  • Full integration of safety processes across the organisation, including active involvement of frontline staff in investigations, risk assessments, and safety improvement initiatives.

  • Strengthened stakeholder collaboration, including formalised internal and external interface management.

  • Demonstrated resilience and adaptability, maintaining high safety performance despite increased operational demand and external challenges, supported by robust SMS processes and governance.

Safety occurrences

Rate of separation minima infringements (SMIs) (PI#2) and Rate of separation minima infringements with ANS contribution (PI#4)

Rate of SMI with ANS contribution per 100,000 flight hours
# ANSP
Flight hours
Number of SMIs with ANS contribution
Rate of SMI with ANS contribution per 100,000 flight hours
% variation in rate of SMIs
2025 2026 2027 2028 2029 2025 2026 2027 2028 2029 2025 2026 2027 2028 2029 2025 2026 2027 2028 2029
1 BULATSA 443,333 NA NA NA NA 12 NA NA NA NA 2.7 NA NA NA NA NA NA NA NA NA
NoteFocus on separation minima

At State level, Bulgaria reported 13 separation minima infringements (SMI) in their airspace during 2025. The rate of separation minima infringements was lower than the Union-wide average (2.93 vs 7.87). At ANSP level, Bulgaria reported 12 SMIs with ANS contribution. The rate of separation minima infringements at ANSP level was lower than the Union-wide average (2.71 vs 6.02).

Comparison for 2024 is not possible, as Bulgaria did not submit information on SMIs in 2024.

In terms of initiatives implemented or planned, the monitoring report lists the following initiatives:

  • Systematic occurrence management: comprehensive recording, classification, and analysis of all ATM/CNS events in e-TOKAI/ECCAIRS to identify trends and contributory factors.

  • Structured change management: application of formal change assessments, safety cases, and implementation plans to mitigate risks from operational and technical changes.

  • Continuous safety performance monitoring: weekly operational reviews and systematic tracking of safety recommendations and corrective actions through maintained registers.

  • Targeted risk mitigation and coordination: regular national and inter‑institutional coordination (incl. cross-border cooperation) to address identified risks and prevent recurrence of SMIs.

In terms of monitoring the effectiveness of the initiatives, the NSA states in the monitoring report that the NSA ensures performance monitoring through:

  • Risk-based oversight and regulatory supervision, including structured review of change management processes and safety assessments.

  • Performance monitoring using ECCAIRS data, focusing on trends, severity and ANS contribution.

  • Verification of corrective actions implementation, including follow-up on recommendations and timeliness/effectiveness of mitigation measures.

  • Regular review of safety outcomes and effectiveness of measures through reported data and oversight activities.

 
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