Flight Information Service (FIS) plays a crucial role in aviation safety. It offers essential advice and information that helps ensure flights are conducted safely and efficiently. According to ICAO Annex 11, this service can stand alone or work alongside air traffic control services. FIS includes several important elements.
Firstly, it provides SIGMET and AIRMET information, which are vital for pilots. Additionally, the service alerts about volcanic activity, including pre-eruption signs, eruptions, and ash clouds. It also communicates any release of radioactive materials or toxic chemicals into the atmosphere. Another key aspect is informing about the status of navigation aids and the condition of aerodromes. This includes updates on movement areas affected by snow, ice, or significant water accumulation. Unmanned free balloons are also covered under this service, along with any other information that may impact safety.
Furthermore, FIS provides weather conditions at departure, destination, and alternate aerodromes. It warns about collision hazards for aircraft operating in airspace Classes C, D, E, F, and G. For flights over water, when requested, it shares available details about surface vessels, such as their radio call sign, position, true track, and speed. Overall, Flight Information Services are essential for maintaining safety in the skies.
