GM1 ATM/ANS.OR.A.045(g) and (i) Changes to a functional system

• ED Decision 2023/018/R found in: ATM/ANS Provision of Services (2017/373) (Mar 2025)

GM1 ATM/ANS.OR.A.045(g) and (i) Changes to a functional system ED Decision 2023/018/R MODIFIED ATM/ANS EQUIPMENT ATM/ANS equipment is considered ‘modified’ in the context of changes to functional systems when there is: — a modification of the hardware (HW) or software (SW) that forms the ATM/ANS equipment itself [software and hardware]; or — a modification of the usage of the ATM/ANS equipment, when such usage is part of the applicable detailed specifications or any identified limitation. For that purpose, the category of the equipment [certification, declaration, or statement of compliance] or the applicable detailed specifications may be impacted and therefore reassessed. Modifications of the usage of the equipment are modifications to the way the components of the functional system are organised. In other words, such modifications are modifications to the architecture of the functional system, and, thus, subject to safety (support) assessment.