Definition
On an IFR clearance or routing display, a label indicating that a particular procedure, route, or service is currently usable for flight planning or ATC issuance — meaning it is published, active, and not restricted, closed, or otherwise unusable at the time shown.
Plain English
It means this option is open and can be used right now. It is not closed, suspended, or off-limits.
Context Anchor
Seen in IFR chart notes, approach information, airport information, and flight planning discussions when deciding whether a procedure, service, runway, or piece of equipment can be used.
Derivation
Available comes from the idea of something being “of value” or “of use.” That helps in aviation because an available item is not just present; it is useful to the pilot for the operation being planned or flown.
Why Pilots Care
Using only confirmed available resources prevents in-flight shortfalls that could lead to diversions, fuel exhaustion, or loss of navigation capability.
Intuition Check
Available does not mean guaranteed or automatically approved. It means usable if the conditions, equipment, weather, and any required clearance allow it.
Example Sentence 1
The RNAV approach to Runway 27 is shown as available, so the pilot files it as the expected arrival.
Example Sentence 2
With the reported headwind, the landing distance available exceeded the aircraft's requirements.