airborne collision avoidance system (ACAS)
EASA defines “airborne collision avoidance system (ACAS)” in 2 regulations, worded for each regulation's scope. The wording below is reproduced verbatim from the EASA Easy Access Rules, with a link to the paragraph it comes from.
‘airborne collision avoidance system (ACAS)’ means an aircraft system based on secondary surveillance radar (SSR) transponder signals which operates independently of ground-based equipment to provide advice to the pilot on potential conflicting aircraft that are equipped with SSR transponders;
‘airborne collision avoidance system (ACAS)’ means an aircraft system based on secondary surveillance radar (SSR) transponder signals which operates independently of ground-based equipment to provide advice to the pilot on potential conflicting aircraft that are equipped with SSR transponders;
(8)‘entity originating aeronautical data and aeronautical information’ – means any public or private entity responsible for origination of aeronautical data and aeronautical information used as a source for aeronautical information products and services. These entities do not include ATM/ANS providers referred to in point (2) of Article 2 of this Regulation and aerodromes defined in point (1)(e) of Article 2 of Regulation(EU) 2018/1139.’
Defined in the same article
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