Acronyms: A

Acronym	Name
AP	Airport location (ACARS/AFEPS)
AP	Autopilot System
APA	Allied Pilots Association
APA	Autopilot amplifier
APANPIRG	Asia/PAC Air Navigation Planning & Implementation Regional Group
APAS	Active/Passive Aircraft Survivability
APB	Acquisition Program Baselines
APB	Acquisition program baseline
APB	Auxiliary power breaker
APC	Aeronautical passenger communication
APC	Aeronautical public correspondence
APC	Aircraft power conditioner
APC	Autopilot computer
APCO	Association of Public-Safety Communications Officials – International
APEX	Airline Passenger Experience Association (formerly WAEA)
APEX	Application/executive software
APFA	Association of Professional Flight Attendants
APFDS	Autopilot flight director system
APG	Agency Priority Goals
APG	Airport Planning Guidance
API	Application programming interface
API	Office of Policy and International Affairs
APIM	ARINC Industry Activities Project Initiation/Modification
APIRS	Attitude and positioning inertial reference system
APL	Applied Physics Laboratory
APL	Policy, International Affairs and Environment
APLC	Airport performance laptop computers
APM	Approach path monitor
APMS	Automated performance measurement system
APN	ARINC packet network
APO	Office of Aviation Policy and Plans
APP	Agency Performance Plan
APP	Approach
APP	Approach control
APPR	Approach
APR	Actual performance reserve
APR	Agency Performance Report
APRL	ATN profile requirement list
APS	Airport Planning Standard
APTS	AVN (Aviation Systems Standards) Process Tracking System
APTS	Automated Personnel Tracking System
APU	Auxiliary power unit
APUC	Auxiliary power unit controller
APV	Approach with Vertical Guidance
APX	Application/executive software
AQAFO	Aeronautical Quality Assurance Field Office
AQF	Avionics qualification facility
AQP	Advanced qualification program
AQP	Avionics qualification procedure/program
AQS	Advanced quality system
AQS	FAA Office of Quality, Integration and Executive Services
AR	Authorization Required
AR	Authorization required
ARA	National Engagement and Regional Administration
ARA	Research and Acquisition
ARAC	Army Radar Approach Control (AAF)
ARAC	Aviation Rulemaking Advisory Committee
ARB	Arbitrary waveform generator
ARC	Administrator's Review Committee
ARC	Airlines Reporting Corporation
ARC	Airport Reference Code
ARC	Aviation Review Committee
ARC	Aviation rulemaking committee (FAA)
ARC	FAA Office of Regions and Center Operations
ARCTR	FAA Aeronautical Center or Academy
ARD	Advanced requirement definition
ARDEP	Analysis of research & development in Eurocontrol programs
AREA	Automated En Route Air Traffic Control
ARENA	Areas Noted for Attention
ARF	Airline risk factor
ARF	Airport Reservation Function
ARFF	Aircraft Rescue and Fire Fighting
ARFF IC	Aircraft Rescue and Fire Fighting Incident Commander
ARFORGEN	Army Force Generation
ARINC	Aeronautical Radio Incorporated
ARINC	Aeronautical Radio, Inc.
ARLNO	Airline Office
ARM	Area regional manager
ARM	FAA Office of Rulemaking
ARMC	Area regional maintenance center
ARMS	Airspace resource management system
ARNS	Aeronautical radio navigation services
ARO	Airport Reservation Office
ARO	Airport Reservations Office
ARP	Aerospace recommended practice
ARP	Airport reference point
ARP	Antenna reference point
ARP	FAA Airports Organization
ARP	FAA Office of Airports
ARRA	American Recovery and Reinvestment Act of 2009
ARS	Air Traffic Requirements Service
ARS	Airport Surveillance Radar
ARS	Automated Reproduction System
ARSA	Airport Radar Service Area
ARSA	Airport Service Radar Area
ARSR	Air Route Surveillance Radar
ARSR	Long Range Surveillance Radar
ARTAS	ATM surveillance tracker and server
ARTCC	Air Route Traffic Control Center
ARTCC	Air route traffic control center

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Acronyms: A