Aeronautical Terms beginning with A

Aeronautical Information Services

A facility in Silver Spring, MD, established by FAA to operate a central aeronautical information service for the collection, validation, and dissemination of aeronautical data in support of the activities of government, industry, and the aviation community. The information is published in the National Flight Data Digest.

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AFSS

Automated Flight Service Station

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AGL

Above Ground Level

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AHRS

Attitude Heading Reference System

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AIM

Aeronautical Information Manual

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AIRMET

Airmen’s Meteorological Information

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AIS

Aeronautical Information Services

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ALD

Available Landing Distance

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ALS

Approach Light Systems

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AMSL

Above Mean Sea Level

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ANP

Actual Navigation Performance

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AOCC

Airline Operations Control Center

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AP

Autopilot System

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APV

Approach with Vertical Guidance

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ARENA

Areas Noted for Attention

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ARFF IC

Aircraft Rescue and Fire Fighting Incident Commander

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ARINC

Aeronautical Radio Incorporated

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ARO

Airport Reservations Office

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ARSA

Airport Radar Service Area

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ARSR

Air Route Surveillance Radar

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ARTCC

Air Route Traffic Control Center

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ARTS

Automated Radar Terminal System

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ASDE-X

Airport Surface Detection Equipment - Model X

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ASOS

Automated Surface Observing System

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ASR

Airport Surveillance Radar

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ASRS

Aviation Safety Reporting System

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ATC

Air Traffic Control

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ATCRBS

Air Traffic Control Radar Beacon System

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ATCSCC

Air Traffic Control System Command Center

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ATCT

Airport Traffic Control Tower

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ATD

Along-Track Distance

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ATIS

Automatic Terminal Information Service

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ATT

Attitude Retention System

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AWC

Aviation Weather Center

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AWOS

Automated Weather Observing System

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AWSS

Automated Weather Sensor System

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AWTT

Aviation Weather Technology Transfer

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AWW

Severe Weather Forecast Alert

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