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Flight Information Region

Wikis > Rules and Regulations > Flight Information Region
Flight Information Region

FIR Flight Information Region – includes the airspace within specified borders, vertical extent is in general unlimited, except when limited by a UIR. FIRs shall be contiguous to each other. FIS and alerting service are provided in FIR.
UIR Upper Flight Information Region – established when desirable to limit the number of FIRs through which high flying aircraft have to pass. An UIR always has a specified lower limit.
FIS Flight Information Service – is provided to give advice and information useful for the safe and efficient conduct of flights. FIS is given to all known aircraft operating or about to operate in a FIR. FIS includes information on SIGMET, serviceability of navigation aids, condition of aerodromes and associated facilities and other information considered pertinent to safety.

Source: EU-OPS

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