ED Decision 2020/021/R
ASSESSMENT OF CHANGES
(a) Safety (risk) assessment of a change
A safety (risk) assessment of a change includes:
(1) the identification of the scope of the change;
(2) the identification of hazards;
(3) the determination of the safety criteria applicable to the change;
(4) the risk assessment in relation to the harmful effects or improvements in safety related to the change and, if required, risk mitigation for the change to meet the applicable safety criteria;
(5) the verification that the change conforms to the scope that was subject to the safety assessment, and that it meets the safety criteria, before the change is put into operation; and
(6) the specification of the monitoring requirements necessary to ensure that the aerodrome and its operation will continue to meet the safety criteria after the change has been put into operation.
(b) Scope of the safety assessment
The scope of the safety assessment includes the following elements and their interaction:
(1) the aerodrome, its operation, management, and human resources being changed;
(2) the interfaces and interactions between the elements being changed and the rest of the system;
(3) the interfaces and interactions between the elements being changed and the environment in which they are intended to operate; and
(4) the full lifecycle of the change from conception to operations.
(c) Safety criteria
The safety criteria used for the safety assessment of a change:
(1) are compatible or the same with the safety criteria of the aerodrome operator and the air traffic services (ATS) provider;
(2) are defined in accordance with the procedures for the management of the change contained in the management system manual; and
(3) depending on the availability of data, are specified with reference to explicit quantitative acceptable safety risk levels, recognised standards and/or codes of practice, the safety performance of the existing or a similar system.
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