Glossary
Navigation & Airspace
Flight Information Region (FIR)
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Definition
A defined area of airspace in which flight information and alerting services are provided
Related Terms
Airspace Classification
The system dividing airspace into classes (A through G) with different rules and requirements
Area Control Center (ACC)
The ATC facility responsible for aircraft in en-route airspace between terminal areas
Continental Airspace
Airspace over a continent's landmass, typically better served by radar and communications
Oceanic Airspace
Airspace over oceans where radar coverage is limited, requiring procedural separation
Frequently Asked Questions
What is Flight Information Region (FIR)?
A defined area of airspace in which flight information and alerting services are provided
What does FIR stand for?
FIR stands for Flight Information Region (FIR). A defined area of airspace in which flight information and alerting services are provided
How does Flight Information Region (FIR) relate to other aviation concepts?
Flight Information Region (FIR) is closely related to Airspace Classification and Area Control Center, among other key aviation concepts.
More in Navigation & Airspace
Airspace Classification
Airway (AWY)
Approach Procedure
Area Navigation (RNAV)
Decision Height (DH)
Distance Measuring Equipment (DME)
Flight Level (FL)
Glideslope (GS)
GPS Navigation (GPS)
Instrument Landing System (ILS)
Minimum Safe Altitude (MSA)
Missed Approach
Non-Directional Beacon (NDB)
Required Navigation Performance (RNP)
Squawk Code
Standard Instrument Departure (SID)
Standard Terminal Arrival Route (STAR)
Transition Altitude (TA)
Transponder (XPDR)
VHF Omnidirectional Range (VOR)
Waypoint (WPT)