UAS Safety Assessment Methodologies for ATM Actors

The EU risk-based regulatory framework for UAS (Regulations 2019/945 and 2019/947) considers three categories of operations: open, specific and certified. From the 1st of July 2020, with the new regulatory framework in place, operations in the specific category will generally require preparing and submitting a risk assessment to the CAA for evaluation and approval.

In addition, on the 9th of October 2019, EASA published Acceptable Means of Compliance (AMC) and Guidance Material (GM) to Commission Implementing Regulation (EU) 2019/947. These documents recommend using the Specific Operations Risk Assessment (SORA) methodology when applying for an authorisation in the specific category. Also, SORA will be used to define Standard Scenarios and Pre-Defined-Risk-Assessment (PDRA).

Meanwhile, the SESAR 2020 CORUS Project is developing the MEthoDology for the U-Space Safety Assessment (MEDUSA) for identifying and managing hazards posed by drone traffic in the U-Space. MEDUSA takes into consideration the outcome of different SORA assessment, prepared by UAS operators. It then integrates those results in a single U-Space safety assessment.

Deep Blue has now designed a new training course. In short, it will provide a comprehensive overview of these two risk assessment methodologies: SORA and MEDUSA. The course aims at offering the perspective of both the drone operator and the ATM and U-Space providers in the development and evaluation of safety assessments, with a focus on the evaluation of the “air” risk.


At the end of the course:

– Participants will be able to grasp the basic concepts of the SORA and MEDUSA methodologies.
– In addition, they will understand how SORA and MEDUSA complement each other in dealing with the risk related to UAS operations in controlled airspace.
– Finally, participants from the competent authorities should be able to assist in the review of the applications received from the drone operators and in the interaction with relevant external services (ATM or U-Space).

Target audience

– Personnel of competent authorities that need to evaluate applications based on SORA.
– Employees of UAS industry, remote pilots, instructors, and other aviation professionals who want to understand how to apply the SORA methodology.
– Personnel of service providers that want to understand how SORA and MEDUSA deal with the interaction between UAS and other traffic.

Location and dates

Location: EUROCONTROL Institute of Air Navigation Services (IANS), Rue Antoine de Saint Exupéry, 12, L-1432, Luxembourg.
Available dates:
– 11-13 May 2020
– 18-20 November 2020


No fee applies for course participants from Member States’ competent authorities and certified organisations. The EUROCONTROL Work Programme sponsors the training cost.
The price per course participant from other organisations or individuals is 960,00 EUR.
For more information and to book your seat, visit the EUROCONTROL training zone.

Vera Ferraiuolo

Senior Dissemination Consultant