Flight Information Services Flashcards
According to MATS Part 1, what is the definition of a Traffic Service? (6 marks)
Traffic Service is a surveillance-based type of UK Flight Information Service where, in addition to the provisions of Basic Service, the controller provides specific surveillance-derived traffic information to assist the pilot in avoiding other traffic. Controllers may provide headings and/or levels for the purposes of positioning and/or sequencing, however, the controller is not required to achieved deconfliction minima, and the pilot remains responsible for collision avoidance.
According to MATS Part 1, define Traffic Information (Glossary Definition)
Information issued by an air traffic services unit controller to alert a pilot or controller to other known or observed air traffic which may be in proximity to the position or intended route of flight and to help the pilot.
When passed to an aircraft, what shall Traffic Information include?
Traffic information to aircraft shall include the following:
1) Bearing from the aircraft in terms of the 12-hour clock (when the aircraft is turning, direction of the unknown aircraft by compass points)
2) Distance from the aircraft in miles
3) Direction in which the unknown aircraft is proceeding, e.g. “Traffic is opposite direction/crossing left to right” etc.
4) Height information when available, this may include the unverified Mode C of unknwon aircraft
According to MATS Part 1, when providing a Deconfliction Service, what are the required deconfliction minima against:
1) Un-coordinated traffic?
2) Aircraft that are under the control of the same controller, or that have been subject to coordination?
1) The deconfliction minima against uncoordinated traffic are:
a) 5nm laterally (subject to surveillance capability and regulatory approval) or
b) 3,000ft vertically and, unless the SSR code indicates that the Mode C data has been verified, the surveillance returns, however presented, should not merge. (Note: Mode C can be assumed to have been verified if it is associated with a deemed validated Mode A code. The Mode C data of aircraft transponding A0000 is not to be used in assessing deconfliction minima)
2) The deconfliction minima against aircraft that are being provided with an ATS by the same controller, or that have been subject to coordination are:
a) 3nm laterally (subject to surveillance capability and regulatory approval) or
b) 1,000ft vertically (2,000ft within active MDA/MTA above FL410 and above FL290 where both aircraft are not RVSM approved) or
c) 500ft vertically (subject to regulatory approval)
According to MATS Part 1, what is the definition of a Basic Service?
Basic Service is a type of UK FIS provided for the purpose of giving advice and information useful for the safe an efficient conduct of flights. This may include weather information, changes of serviceability of facilities, conditions at aerodromes, general airspace activity information, and any other information likely to affect safety. The avoidance of other traffic is solely the pilots responsibility.
