FIS

Question 1

According to MATS Part 1, what is the standard phraseology for traffic information on known traffic?

Answer 1

Traffic (number) o’clock, range (number) miles, opposite direction/crossing left to right/right to left, thousand feet above/below

Question 2

According to MATS Part 1, define Essential Traffic Information

Answer 2

Essential traffic is traffic which is separated for any period by less than the specified standard separation. It is normally passed in situations when ATS Surveillance Systems are unavailable.

Question 3

According to MATS Part 1, when Essential Traffic Information is passed to aircraft, what shall it include?

Answer 3

a) Direction of flight of conflicting aircraft
b) Type of conflicting aircraft
c) Cruising level of conflicting aircraft and ETA for reporting point, or for aircraft passing through the level of another with less than the normal separation, the ETA for the reporting point nearest to where the aircraft will cross levels.
d) Any alternative clearance