AIRAC


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AIRAC

An acronym (Aeronautical Information and Regulation and Control) signifying a system (and associated NOTAM, or notices to airmen) that tries to advance notification, based on common effective dates, of circumstances that necessitate changes in operating practices. In part 1 of the AIRAC NOTAM, information about the establishment and withdrawal of, and premeditated significant changes to (including operational trials), the items mentioned therein are given. This may include:
i. Horizontal and vertical limits, regulations, and procedures applicable to flight information regions; control areas and control zones; ATS (air traffic services) routes; advisory routes; permanent danger; prohibited and restricted areas, including type and periods of activity when known; and ADIZ (air defense identification zone).
ii. Position, frequencies, call signs, known irregularities, and maintenance periods of radio navigation aids and communications facilities.
iii. Aerodrome lighting and beacons, obstructions, and snow plans.
iv. Holding and approach procedures, arrival and departure procedures, noise abatement, and any other pertinent ATS (air traffic services) procedures.
v. Meteorological facilities and procedures.
vi. Part 2 includes the establishment and withdrawal of, and premeditated significant changes to the position, height, and lighting of navigational obstructions; hours of service of aerodromes, facilities and services, customs, immigration and health services; temporary danger, prohibited and restricted areas and navigational hazards, military exercises and mass movement of aircraft.
References in periodicals archive ?
AIRAC controls the process by aligning the steps with calendar dates.
FedEx can deliver a parcel anywhere in the world in far less time and electronic transmittal of information takes seconds, but tracking latency is part of the AIRAC quality control program.
Here's the important one: the effective or AIRAC date.
FAA AIS prints the effective dates (they print the start and end dates of the AIRAC cycle) on the side of the electronic chart or the front of the booklet of printed charts.
They are "effective" only during the AIRAC cycle dates specified on the enroute chart/TPP covers or on the side of the chart when printed from the digital-TPP.
The AIRAC date, ideally, is also the time when scheduled changes occur.
The next AIRAC date is March 30th and none of the charts issued have an effective date.
The change occurred on January 30 (NOTAM times are read YYMMDD), which was not an AIRAC date.
Since these changes match the published NOTAMS, the charts can be used as soon as received, or a pilot could delay updating until the next AIRAC cycle date, which is March 30.
For most NOTAMs it takes a 56-day cycle (two AIRAC dates) to be fully integrated.
FDC NOTAMs effecting instrument flight procedures are sent to chart creators in a Transmittal Letter with a set AIRAC date.
There is no guarantee that you have all the information needed if you're past the AIRAC date without getting a chart update.