GM1 ATS.TR.155(a) ATS surveillance services

• ED Decision 2020/008/R found in: ATM/ANS Provision of Services (2017/373) (Feb 2023)

GM1 ATS.TR.155(a) ATS surveillance services ED Decision 2020/008/R ATS SURVEILLANCE SERVICES PROVISION IN PRESENCE OF CONTROLLED BUT UNIDENTIFIED AIRCRAFT In the event that the air traffic controller has been notified of a controlled flight entering or about to enter the airspace within which a separation minimum based on ATS surveillance systems is applied, but has not identified the aircraft, the air traffic controller may, if so prescribed by the air traffic services provider, continue to provide ATS surveillance services to identified aircraft, provided that: (a)       reasonable assurance exists that the unidentified controlled flight will be identified using SSR and/or ADS-B and/or MLAT or the flight is being operated by an aircraft of a type which may be expected to give an adequate return on primary radar in the airspace within which the separation is applied; and (b)       the separation is maintained between identified flights and any other observed ATS surveillance system position indications until either the unidentified controlled flight has been identified or procedural separation has been established. GM1 ATS.TR.155(a) ATS surveillance services ED Decision 2020/008/R ATS SURVEILLANCE SERVICES PROVISION IN PRESENCE OF CONTROLLED BUT UNIDENTIFIED AIRCRAFT In the event that the air traffic controller has been notified of a controlled flight entering or about to enter the airspace within which a separation minimum based on ATS surveillance systems is applied, but has not identified the aircraft, the air traffic controller may, if so prescribed by the air traffic services provider, continue to provide ATS surveillance services to identified aircraft, provided that: (a) reasonable assurance exists that the unidentified controlled flight will be identified using SSR and/or ADS-B and/or MLAT or the flight is being operated by an aircraft of a type which may be expected to give an adequate return on primary radar in the airspace within which the separation is applied; and (b) the separation is maintained between identified flights and any other observed ATS surveillance system position indications until either the unidentified controlled flight has been identified or procedural separation has been established.