GM1 ATS.TR.230(b)(2) Transfer of
responsibility for control
ED Decision 2020/008/R
COORDINATION
BETWEEN AIR TRAFFIC CONTROL UNITS FOR APPROVAL REQUESTS
(a) If the flying time from the departure aerodrome of an aircraft to the boundary of an adjacent control area is less than the specified minimum required to permit transmission of the necessary flight plan and control information to the accepting control unit after take-off and to allow adequate time for reception, analysis and coordination, the transferring control unit should, prior to departure, forward that information to the accepting control unit together with a request for approval. The required time period should be specified in letters of agreement or local instructions, as appropriate. In the case of revisions to a previously transmitted current flight plan, and control data being transmitted earlier than this specified time period, no approval from the accepting control unit should be required.
(b) In the case of an aircraft in flight requiring an initial clearance when the flying time to the boundary of an adjacent control area is less than a specified minimum, the aircraft should be held within the transferring air traffic control unit’s control area until the flight plan and control information have been forwarded together with a request for approval, and coordination effected with the adjacent air traffic control unit.
(c) In the case of an aircraft requesting a change in its current flight plan, or of a transferring air traffic control unit proposing to change the current flight plan of an aircraft, and the flying time of the aircraft to the control area boundary is less than a specified minimum, the revised clearance should be withheld pending approval of the proposal by the adjacent air traffic control unit.
(d) When boundary estimate data is to be transmitted for approval by the accepting control unit, the time in respect of an aircraft not yet departed should be based on the estimated time of departure as determined by the air traffic control unit in whose area of responsibility the departure aerodrome is located. In respect of an aircraft in flight requiring an initial clearance, the time should be based on the estimated elapsed time from the holding fix to the boundary plus the time expected to be needed for coordination.
Air traffic control units must coordinate flight plan and control data with adjacent units, especially near control area boundaries. For short flights, pre-departure approval is needed. In-flight changes or initial clearances require holding the aircraft until coordination is complete. Time estimates for coordination depend on departure status and flight progress.
* Summary by Aviation.Bot - Always consult the original document for the most accurate information.
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