Definition of “Clearance Void Time”
Clearance void time is a term used in air traffic control (ATC) to refer to the specific time at which a departure clearance automatically gets canceled when takeoff has not been made. This cancellation of clearance is irrespective of the reason why the takeoff has not been made, and it is the pilot’s responsibility to obtain a new clearance or cancel the Instrument Flight Rules (IFR) flight plan if they fail to take off at the specified time.
The clearance void time is typically given by the ATC when the pilot requests for departure clearance. It serves as a crucial indicator of the latest time by which the flight must take off; otherwise, the pilot has to follow the previously specified procedure to obtain a new clearance or cancel the IFR flight plan.
Moreover, pilots are obligated to adhere to the clearance void time strictly. This is because the airspace becomes busy during peak hours, and any delays on one aircraft can affect the entire airspace. Therefore, timely departures are necessary to ensure safety and avoid congestion in the airspace.
In conclusion, clearance void time is a crucial term in ATC operations, serving as a deadline within which pilots are required to take off to avoid cancellation of their departure clearance.
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