Flight Information Service
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Flight Information service is a service provided for the purpose of giving advice and information useful for the safe and efficient conduct of flights. (ICAO Annex 11: Air Traffic Services)
A flight information service may be provided on its own or in conjunction with an air traffic control service.
Flight information service includes the provision of pertinent:
- SIGMET and AIRMET information;
- Information concerning pre-eruption volcanic activity, volcanic eruptions and volcanic ash clouds;
- Information concerning the release into the atmosphere of radioactive materials or toxic chemicals;
- Information on changes in the serviceability of navigation aids;
- Information on changes in condition of aerodromes and associated facilities, including information on the state of the aerodrome movement areas when they are affected by snow, ice or significant depth of water;
- Information on unmanned free balloons; and,
- Any other information likely to affect safety.
as well as information concerning:
- Weather conditions reported or forecast at departure, destination and alternate aerodromes;
- Collision hazards, to aircraft operating in airspace Classes C, D, E, F and G;
- For flight over water areas, in so far as practicable and when requested by a pilot, any available information such as radio call sign, position, true track, speed, etc., of surface vessels in the area.
- ICAO Annex 2: Rules of the Air
- ICAO Annex 11: Air Traffic services