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AAA (All Aviation Abbreviations) www.flyingineurope.be

AAA
All Aviation Abbreviations

Flying In Europe
Second Edition - May 2005

© 2004-05 Flying in Europe – Belgium
www.flyingineurope.be

©2004-05 Flying In Europe – info@flyingineurope.be – www.flyingineurope.be 1


-1-9- AAME : Association of Aviation Medical Examiners
AAP : Advanced Automation Program
AAA All Aviation Abbreviations AAPA: Association of Asia Pacific Airlines
1 PPS : One Pulse Per Second AAR : Airport Acceptance Rate or Airport Arrival Rate
1 :1 : One-to-one relationship AAR : Air-to-Air Refuelling
1 :M : One-to-Many relationship AAS : Advanced Automation System (the end systems for
16PF : Sixteen Personality Factor Questionnaire all FAA air traffic control, located at the ARTCCs
2D : Two Dimensional AASA : Air Lines Association of Southern Africa
3D : Three Dimensional AASC : Airport Authorities Steering Committee
3D : Palair Macedonian (airline) AASI : Aeronautical Applications Service Interface
4D : Four Dimensional AASR : Airways and Airport Surveillance Radar
4D FMS : 4D Flight Management System AAT : Alpha Attenuation Test
4D-NAV : 4D Navigation AATF : Airworthiness Assurance Task Force
4DTN : 4D Trajectory Negotiation AATMS : Advanced Air Traffic Management System
4-MASt : 4-MAST group AATT : Advanced Aviation Transportation Technology
5LNC : Five Letter Name Code AAUI : Aeronautical Applications User Interface
5-ST-RSG : 5-States Route Structure Group AB : Action Button (mouse)
5-STRSSG : 5-States Route Structure Steering Group ABAS : Aircraft-based Augmentation System
5-SRSWG : 5-States Route Structure Working Group ABC : ATC Bypass Complex
8.33 CP : 8.33 Contact Person ABET : Airspace Behavioural Engineering Technology
8.33 PMC : 8.33 Programme Management Cell ABFG : ATM Basic Functions Sub-Group
8.33 State : A State initially implementing 8.33 kHz ABI : Advance Boundary Information
channel spacing ABM : Abeam
ABN : Aerodrome Airport Beacon
-A- ABPSK : Aviation Binary Phase Shift Keying
ABT : About
A : Amber ABV : Above
A : Ampere AC : Air Canada
A : At or Above (constrained altitude) AC : Alternating Current
A : Autotuned NAVAID AC : Altocumulus
A : Austria AC : Assessment Centre
A SMGCS : Advanced Surface Movement Guidance and AC : Assistant Controller
Control Systems AC : Advisory Circular
A/A : Air/Air ACA : Air Traffic Centre Architecture
A/C, a/c : Aircraft ACA : Airport Co-ordinators Association
A/D : Analog-to-Digital ACA : Airspace Control Activity
A/D Converter : Analogue-to Digital Converter ACA : AUP / UUP Composition application (software)
A/G : Air-Ground ACA : Austrian Cockpit Association
A/I : Accident(s)/Incident(s) ACAC : Arab Civil Aviation Council
A/l : Anti-ice Acad : Academic establishments
A/L : Auto Land ACAD : Auto Computer Aided Design (Operator-Input +
A/P : Autopilot Display System)
A/T : Autothrottle ACAG : Airspace Co-ordination Agencies
AA : American ACAM : Airport Capacity Airside Modelling
AA : Approved agency
ACAMS : Aircraft Condition Analysis and
AAA : Advanced ATC System Amsterdam
AAA : Asian Airliners Association Management System
AAA : (or AAB, AAC...etc., in sequence) Amended ACARS : Aircraft Communications, Addressing and
meteorological message (message type designator) Reporting System
AAATS : Australian Advanced Air Traffic Services ACARS ARINC communications and address reporting
AAC : Alpha Attenuation Coefficient system (digital communications system used primarily for
AAC : Aeronautical Administration Communication (a class aircraft-to-airline messages)
of communication which supports administrative ACARS MU ACARS Management Unit
communication) ACAS : Airborne Collision Avoidance System
AAC : Airline Administrative Communication ACAS I : Aircraft Collision Avoidance System Version 1
AACC : Airport Associations Co-ordinating Council ACAS II : Aircraft Collision Avoidance System Version 2
AACE : Airfield Approach Control Element ACAS III : Aircraft Collision Avoidance System Version 3
AACI : Airports Association Council International ACASA : ACAS Analysis
AACO : Arab Air Carriers Organisation ACATF : ATC Centre Communications Architecture Task
AAD : Assigned Altitude Deviation Force
AAF : ATM Added Functions ACB : Aeroclub
AAFCE : Allied Air Forces Central Europe ACC : Area Control Centre
AAFG : ATM Added Functionality Sub-Group ACC Controller : Area Controller
AAG : AIS Automation Group ACC Loop : Anticipation-Action-Comparison Loop
AAGDI / AGADE : Automated Air/Ground Data ACCA : Air Charters Carriers Association
Interchange ACCC : Australian Competition and Consumer
AAH : Autonomous Aircraft Hybrid Commission
AAIB : Air Accident Investigation Branch (UK equivalent of ACCEL : Accelerate
NTSB) ACCESS : Aircraft Control Console for Experiments and
AAIM : Aircraft Autonomous Integrity Monitoring Simulations Studies
AAIS : Automated AIS ACCID : Notification of an aircraft accident
AAL : Above Aerodrome level ACC-PC : ACC Planning Controller
AALS : Advanced Approach and Landing System ACCS : Air Command and Control System
AAM : Airbus Asset Management ACC-TC : ACC Tactical Controller
AAM : Airline Administration Message ACCUM : Accumulate



ACDAC : Asociacion Colombiana de Aviadores Civiles ADC : Air Data Computer
ACDMD : Air Collaborative Decision Making Demonstrator ADC : Analog to Digital Converter
ACE : Allied Command Europe ADCA : Air Defence Classification Area
ACE : Altimeter Control Equipment ADCE : Aircraft Data Circuit-Terminating Equipment
ACE : ATC Communications Environment ADCP : Air Defence Command Post
ACF : Area Control Facility. See ACC or ARTC ADD : Architectural Design Document
ACFS : Advanced Concepts Flight Simulator (a generic ADD : Average Delay per Delayed Flight
"glass cockpit") ADDI : Automated Digital Data Interchange (ICAO)
ACFT : Aircraft ADDN : Addition or Additional
ACG : Advanced ATS Concept Group ADDR : Address
ACG : Advanced Concept Group ADE : Air Defence Element
ACG : ATN/CNS Consultation Group ADE : Autonomous Display Equipment
ACG : ATS System Concept Working Group ADEG : ATS Data Exchange Group
ACG : Austro Control GmbH ADEP : Aerodrome of Departure
ACH : ATC Flight Plan Change Message ADES : Aerodrome of Destination
ACH : ATC Flight Plan Change ADEXA : Air Defence Exercise Area
ACI : Airports Council International ADEXP : ATS Data Exchange Presentation (message
ACI : Area of Common Interest format used for IFPS) ; ATS Data Exchange Program
ACID : Aircraft Identification (ICAO) Format
ACIPLA : Asociacian Civil de Pilotos de Lineas Aereas ADF : Automatic Direction Finder
(Uruquay) ADFL : Augmented Dynamic Flight Leg
ACK : Acknowledge(ment) message ADIRS : Air Data Inertial Reference System
ACL : Altimeter Check Location ADGE : Air Defence Ground Environment
ACL : ATC Clearances ADJ : Adjacent
ACM : Acceptance of (Radar) Co-ordination Message ADI : Aerodrome Control Instrument
ACM : Acceptable Means of Compliance ADI : Attitude Director lndicator
ACM : Airspace Control Measures ADI : Attitude Display Indicator
ACM : ATC Communication Management ADIDS : Advanced Data & Image Distribution System
ACMS : Aircraft Condition Monitoring System (CCTV Application)
ACN : Aircraft Classification Number ADIRS : Air Data Inertial Reference System
ACN : Airspace Co-ordination Notification ADIRU : Air Data Inertial Reference Unit
ACN : Austrian Communication Network ADIS : Automatic dependent surveillance and Data Link
ACNZ : Airways Corporation of New Zealand Interim System
ACO : Airspace Co-ordination Order ADIS : Automatic dependent surveillance and Data Link
ACOD : Area Conflict Detection Interim System
ACP : Accept Message ADIS (P) : Automated Data Interchange System (Panel) -
ACP : Acceptance Message ICAO
ACP : African, Caribbean and Pacific States ADIZ : Air Defence Identification Zone
ACP : Aircraft Control Position (window) ADLP : Aircraft Data Link Processor (the Mode S
ACP : Airspace Control Plan subnetwork function onboard the aircraft that implements
ACP : Airspace Crossing Acceptance Message the OSI network layer protocols)
ACP : Allied Communications Publication ADM : Administrative / Administration
ACP : Azimuth Change/Count Pulses ADM : Aeronautical Decision Making
ACP : Area Control Procedural ADM : Average Delay per Movement
ACPO : Aircraft Position Operator ADM : Airborne Data Bus
ACPSC : Advisory Committee on Procurement and Sales ADM : Air Data Module
Contracts (Eurocontrol/DF) ADMA : Aviation Distributors and Manufacturers
ACPT : Accept or Accepted Association
ACR : Air Carrier ADMD : Airspace Data Management & Distribution
ACR : Atlantic Co-ordinated Route ADNC : Air Defence Notification Centre (GR)
ACRPWG : Aircraft Crash Recovery Procedures Working ADNS : Aeronautical Radio Incorporated Data Network
Group Service
ACS : Advanced Communication System ADOC : Air Defence Operations Centre
ACS : Airspace Control System ADOLT : Air Defence Liaison Team
ACS : Area Control Surveillance ADORA : Analysis and Definition of the Operational
ACSA : Allied Communications Security Agency Requirements for ATM
ACSE : Application Control Service Element ADP : Activity Predictor Display
ACT : Active ADP : ATFM Daily Plan
ACT : Activation message designator ADP : Automated Data Processing or Auxiliary Data
ACT : ATC Activation message Processing
ACT/LAM : Activation Message / Logical ADPG : ATM Data Processing Sub-Group
Acknowledgement Message ADR : Advisory Route
ACTF : Aeronautical Charting Task Force ADR : Air Data Reference
ACU : Airspace / Antenna Control Unit. See BSU ADR : Airfield Damage Repair
AD : Administrative Domain (ENOC) ADR : Average Delay per Regulated Flight
AD : Aerodrome ADREP : Accident/Incident Reporting System
AD : Air Defence ADRS : Air Defence Radar Site
AD : Airworthiness Directive ADS : Air Data System
AD : CFMU/FDOD - Airspace Data Section ADS : Automatic Dependent Surveillance
ADA : Advisory Area ADS-A : Automatic Dependent Surveillance-Addressed
ADAGES : Action Plan Definition on the Basis of ADS-B : Automatic Dependent Surveillance-Broadcast
Architecture studies from GAAS for EATMS ADS-C : Automatic Dependent Surveillance-Contract
ADAP : Automated Downlink of Airborne Parameters ADS-P : Automatic Dependent Surveillance-Panel (ICAO)
ADAPT : ATS Data Acquisition, Processing and Transfer ADS-R : Automatic Dependent Surveillance-Report
Panel (ICAO) ADSEL : Address Selective SSR System (UK)
ADC : Air Defence Centre / Command



ADSIA : Allied Data Systems Interoperability Agency AFPA : Automated Flight Plan to Track Association
ADSP : ADS Processor AFPL : ADEXP Filed Flight Plan
ADSP : Automatic Dependent Surveillance Panel (ICAO) AFRAA : African Airlines Association
ADSU : ADS Unit AFS : Advanced Functional Simulator
ADT : Air Data Tester AFS : Aeronautical Fixed Services
ADT : Approved Departure Time AFS : Automatic Flight System
ADTI : Additional Technical Information (ODS - ESCO) AFSATCOM : Airborne Satellite Communication
ADUG : Airport Database User Group AFT : After (time or place)
ADV : Aerodrome Control Visual AFTN : Aeronautical Fixed Telecommunication Network
ADVON : Advanced Echelon AFW : Area Flows Window
ADZ : Advise AFWA : Automatic Flight Weather Advisory
ADZD : Advised AGA : Aerodromes and Ground Aids
ADZY : Advisory AGARD : Advisory Group on Aeronautical Research and
AE : ATM Engineering Developments
AE : Application Entity AGAS : European Action Group for ATM Safety
AE : United Arab Emirates (ISO Country Code) AGATE :Advanced General Aviation Transport
AEA : Association of European Airlines Experiments
AECB : Atomic Energy Control Board AGC : Automatic Gain Control (VCS)
AECG : ACAS Evaluation and Co-ordination Group AGCS : Air-Ground Communication System
AFCS Automatic Flight Control System AGCSG : Air/Ground Communication Sub-Group Meeting
AEEC : Airlines Electronic Engineering Committee AGDC : Air/Ground Data Communications
AEFMP : Algeria, Spain, France, Maroc, Portugal Project AGDC-SG : Air/Ground Data Communications Sub Group.
AEGIS : Airborne Early Warning Ground Environment See AGSG
Integrated Segment AGDC-TF : Air/Ground Data Communications-TF (ODT)
AEGIS : ATM European Group for Improvement of AGDL : Air-Ground Data Link
Scenarios AGDLS : Air-Ground Data Link System
AEG-TFK : AEG-Telefunken AGL : Above Ground Level
AEM : Airports & Environment Management (Eurocontrol) AGLAE : Air-Ground Data Link Applications
AENA : Aeropuertos Españoles y Navegatión Aérea (ES) / Experimentation
Spanish Airport and Air navigation Administration AGN : Again
AERA : Automated En-Route Air Traffic Control AGN : Agenda
AEREA : Association of European Research AGOD : Advisory Group on Deliverables
Establishments in Aeronautics AGR : Agreement
AEROSAT : Aeronautical Satellite Council AGSG : Air / Ground Data Communication Sub group
AES : Aircraft / Airborne Earth Station (ICAO - ADS) AGVC-SG : Air/Ground Voice Communication Sub Group
AES : ATC Engineering Section AHDG : Assigned Heading
AES : Automatic Enhanced Surveillance AHEAD : Automation and Harmonisation of European
AEV : Annual Equivalent Value Aeronautical Data
AEW : Airborne Early Warning AHGSO : Ad Hoc Group of Senior Officials
AEWPD : Adapted EATM Work Programme Document AHMI : Airborne Human Machine Interface
AF : Air Force AHRS : Attitude and Heading Reference System
AF : Air France (airline) AHS : American Helicopter Association
AF : Audio Frequency (VCS) AI : Artificial Intelligence
AF : DME Arc to a Fix (ARINC 424 Path Terminator) AI : Air India (airline)
AFA : Association of Flight Attendants AIA : Aerospace Industries Association
AFAS : Aircraft in the Future ATM System AIAA : American Institute of Aeronautics and Astronautics
AFAST : Active Final Approach Spacing Tool AIAA : Area of Intense Aerial Activity
AFB : Air Force Base AIB : Aeronautical Information Bulletin (EAD)
AFC : Airport Facilities Control (ICAO) AIC : Aeronautical Information Circular
AFC : ATC Frequency Change (service) AICB : Air Initiated Comm-B Protocol
AFCAC : African Civil Aviation Commission AICG : Ab Initio Co-ordination Group
AFCNF : Air Force Central NOTAM Facility AICG : ACAS Implementation Co-ordination Group
AFCS : Automatic Flight Control System AICG : Airport Interface Co-ordination Group
AFD : Airport Facility Directory AICM : Aeronautical Information Conceptual Model (EAD)
AFD : Associated Flight Details AID : Aid or Aircraft Identification
AFDS : Autopilot Flight Director System (also A/P F/D) AIDA : Aeronautical Information and Data handling Austria
AFFSC (E) : Air Forces Flight Safety Committee (Europe) AIDC : ATS Interfacility Data Communications (ICAO)
AFG : Advisory Financial Group (ex-FCG/Eurocontrol) AIDS : Aircraft Integrated Data System
AFI : Africa-Indian Ocean Region (ICAO) AIG : ACAS Implementation Group ; Automatic Input
AFIL : Air Filed Flight Plan Generation
AFIS : Airport/Aerodrome Flight Information Service AIG : Accident Investigation and Prevention
AFISO : Aerodrome Flight information Service Officer AIL : Aeronautical Item Location Bank
AFIZ : Aerodrome Flight information Zone AIM : Airman’s Information Manual
AFL : Actual Flight Level AIM : ATFM Information Message
AFL : Assigned Flight Level AIM-FANS : Airbus Interoperable Modular FANS
AFM : Yes or Affirm or Affirmative or That is Correct AIMS : Airplane Information Management System (Boeing
AFM : Airplane Flight Manual 777)
AFMS : Advanced Flight Management System AIMS : Aircraft Integrated Monitoring (Information
AFMSG : Audit and Financial Matters Sub-Group Management) System
AFN : Air Traffic Services Facilities Notification AIP : Aeronautical Information Publication
AFN: Airspace / Flow Management & Navigation Business AIPN : Appointing authority
Division (Eurocontrol) AIR : Armament Initiative and Requirements
AFP : Active Flight Plan Processing AIR 4653 : Aerospace Information Report 4653 - (Flight
AFP : Area Forecast Panel Management Systems Review)
AFP : ATC Flight Plan Proposal AIR : Air Control
AIRAC : Aeronautical Information Regulation and Control



AIRCOM : Aircraft Communications AMD : Advisory Map Display
AIREP : Air-Report (ICAO) AMD : Amend or Amended
AIRMET : Air Meteorological Information Report which AMD : Arrival manager Display
may affect the safety of low-level aircraft operations AMDP : Airspace Management Data Processing
AIRPROX : The code word used in air traffic incident AMDP-TF : EATCHIP Airspace Management Data
report to designate aircraft proximity (ICAO) Processing Task Force
AIRS : Advanced Infrared Sounder AMDT : Amendment (ICAO)
AIS : Aeronautical Information Services AMDWP : Aeromedical Working Party
AISAP : AIS Automation Specialist Panel AME : ATM Message Exchange
AISAS : Aeronautical Information Services Automated AMEG : Air Miss Evaluation Group
System AMGR : Airport Manager
AISC : Aeronautical Mobile Communications System AMHS : Aeronautical Message Handling Service
Panel AMI : Airline Modifiable Information
AISC : Aeronautical Industry Service Communication AMI : Administrative and Management Information
AISG : AIS Automation Group Software
AISPOP : AIS Planning and Operations Subgroup AMID : Approach Multi-Input Device (ODID)
AISS : Aeronautical Information Server System AMJ : Advisory Material Joint
AIS-TF : AIS Training Task Force AMLCD : Active Matrix Liquid Crystal Display
AISU : Aeronautical Information Service Unit AML (WP) : Airfield Markings and Lighting (Working Party)
AITSC : Administrative IT Steering Committee AMN : Airspace Management and Navigation (EATM Unit)
AIXM : Aeronautical Information Exchange Model AMOC : ATFM Air Traffic Flow Management
AKARD : Available Knowledge And required system AMOC : ATFM Modelling Capability
Research and Development AMOS : Automatic Meteorological Observing System
AL : Aircraft Label AMOS : ARTAS Maintenance and Operational Support
AL : Albania (ISO Country Code) organisation
AL : Alerting Service AMOSS : Airline Maintenance and Operation Support
AL : Allegheny System
ALA : Alighting Area AMPS : American Mobile Phone System
ALB : Alternative Label AMS : Aeronautical Mobile Service
ALCC : Airlift Central Co-ordination Centre AMS : Airspace Management Service
ALCE : Airlift Control Element AMS : ATC Model-Simulations Studies
ALCM : Air Launched Cruise Missile AMS(R)S : Aeronautical Mobile Satellite (Route) Service
ALD : Airlift Division AMSC : Allied Military Security Code
ALERFA : Alert Phase AMSL : Above Mean Sea Level
Alert : Alert phase AMSS : Aeronautical Mobile Satellite Services
Alert Indicator : (visual or auditory) which provides AMSS : Aeronautical Mobile Satellite System
information to the flightcrew in a timely manner about an AMSS : Automatic Message Switching System
event requiring pilot awareness. AMSSP : Aeronautical Mobile Satellite Service Panel
ALIM : Altitude Limit (Positive RA Altitude Threshold) AMT : ADS Mediterranean Trials
ALLA : Allied Long Lines Agency AMTI : Adaptive Moving Target Indicator
ALMC : Airlift Movement Cell AN : Access Node (RMCDE)
ALO : Air Force Liaison Officer ANA : Aeroportos e Navegaçao Aérea (PT)
ALPA : Air Line Pilots Association ANA All Nippon Airways
ALR : Alerting message ANA-EP : Aeroportos e Navegaçao Aérea Empresa
ALRS : Alerting Service Pública (PT)
ALRT : Alert ANC : Access Network Computer
ALS : Approach Lighting System ANC : Air Navigation Commission / Conference (ICAO)
ALS : Architecture Layer Structure (ISO) ANCAT : Abatement of Nuisances Caused by Air
ALS : Automatic Line Switch (RMCDE) Transport (ECAC environmental policy committee (ENV :
ALS : Automatizovany Letisni System (CZ) / Automated AL)
Airport System ANDRA : Advanced Node for Data Relay in ATN
ALSTG : Altimeter Setting ANDS : ANS Department
ALT : Airborne Link Terminal ANERC : Advanced New En-Route Centre (UK)
ALT : Altitude ANM : ATFM Notification Message (CFMU / ECAC States)
ALT : Alternate ANOVA : Analysis of Variance
ALTM : Altimeter ANP : Actual Navigation Performance
ALTN : Alternate Aerodrome ANP : Air Navigation Plan
ALTNLY : Alternately ANPP : Air Navigation Plan Publication
ALT HOLD : Altitude Hold Mode ANS : Air Navigation Service
ALTRV : Altitude Reservation System ANS : Answer
AM : Aeromexico ANS/CR : Air Navigation Services of the Czech Republic
AM : Airspace Management ANSA : International Advisory Group Air Navigation
AM : Amplitude Modulation Services
AM : Armenia (ISO Country Code) ANSEP : Air Navigation Services Economics Panel (ICAO)
AM : Arrival Manager ANSI : American National Standards Institute
AM : Attribute Modification ANSIR : Advanced Navigation System Inertial Reference
AMA : Area Minimum Altitude ANSO : Air Navigation Services Offices (Irish aviation
AMA : Airlift Management Agency authority)
AMAN : Arrival Manager (APATSI) ANSP : Air Navigation Service Provider
AMC : Airspace Management Cell ANT : Airspace and Navigation Team
AMC : ATC Microphone Check (service) AO : Aircraft Operator
AMC : Avionics Maintenance Conference AO : Airlines Operator
AMC/CADF : Airspace Management Cell - ECAC AO : Arrival Operations
Centralised Airspace Data Function AO : ATM Operations
AMCP : Aeronautical Mobile Communication Panel (ICAO) AOA : Aircraft Operating Agency (e.g. Airlines)
AMD : Administrative Management Domain AOA : Angle-of-Attack



AOA : Airport Operations Area APOD : Airport of Debarkation
AOB : Air Order of Battle APP : Approach Centre / Control (office/service)
AOB : Angle of Bank APP controller/director : Approach controller/director
AOC : Advanced Operational Capability App. : Appendix
AOC : Aerodrome Obstruction/Obstacle Chart APPA-SG : ATFM Policies and Principles Advisory Sub-
AOC : Aeronautical Operational Communications Group
AOC : Aircraft Operating Company APP-ASS : Approach-Assistant
AOC : Aircraft Operations Centre (ICAO) APPR : Approach/Approach Mode
AOC : Airline Operation Control APR : Automatic Position Reporting
AOC Aeronautical Operation Control (communications APRT : Airport
which support safety and regularity of flight that normally APRX : Approximate or Approximately
take place between aircraft and the operator) APS : Approach Control Surveillance
AOC : Assume of Control (ODID) APSG : ACAS Programme Steering Group
AOC : Auxiliary Output Chip APSG : After Passing
AOC : Aeronautical Operational Control APT : Airport(s)
AOC : Air Operator's Certificate APT : Airspace Planning Team became ANT (March 94)
AOC : Airline Operational Communications APU : Auxiliary Power Unit
AOCC : Aircraft Operator Control Centre APV : Approve or Approved or Approval
AOCI : Airport Operators Council International APW : Area Proximity Warning
AOCP : Airborne Operational Computer Programme AQAP : Allied Quality Assurance Publication
AOCS Attitude and Orbit Control System AQG : Agency Quality Group
AOCU : Aircraft Operator Control Unit AQP : Advanced Qualification Programme
AOF : AIS Office (EAD) A-QPSK : Aviation Quadrature Phase Shift Keying
AOF : Allocation of Functions AR : Agency Representative (CIP)
AOG : Aircraft On Ground AR : Air Route
AOI : Aircraft Operations Information AR : Automatic Reminder
AOI : Area of Operational Interest AR : Argentina (ISO Country Code)
AOI : AIS Office AR-1 : Approach Radar 1
AOIS : Aeronautical Operational Information System ARAC Aviation Rulemaking Advisory Committee
AOM : Aircraft Operations Manual ARB : Authoritative Representative Body
AOP : Aeronautical OSI Profile ARC 2000 : Automatic Radar Control for the 21st Century
AOPA : Aircraft Owner and Pilot Associations (CEE)
AOPG : Aerodrome Operations Group (ICAO) ARC : Airlift Requirement Centre
AOPTF : Aerodrome Operations Task Force arc : assigned rate of climb/descent
AOR : Area of Responsibility ARC : Advanced Research for/in Air Traffic Control
AOR : Atlantic Ocean Region (ICAO) ARC (ARCH) : CFMU – Archive System
AOR-E : Atlantic Ocean Region - East (ICAO) ARCC : Air Rescue Co-ordination Centre
AORTF : ATM Added Functionality Operational ARCH : Archives and Quality Control System
Requirements Task Force ARCID : Aircraft Identification
AOR-W : Atlantic Ocean Region - West (ICAO) ARCOS : Arrival Co-ordination System
AOS : Airport Operations Strategy Drafting Group ARCP : Air Refuelling Control Point
AOT : Airport Operations Team ARDEP : Analysis / Assessment of Research and
AOU : Aircraft Operator Unit Development in Eurocontrol Programmes
AOWIR : Aircraft Operator What-If Re-routing ARDRS : Automatic Radar Data Recording System
AOWP : Airport Operations Work Plan ARDS : ATM Architecture and overall system engineering
AP : Airport ARETA : ATM with RNAV in Extended Terminal Area
AP : Auto-Pilot ARFA : Allied Radio Frequency Agency
AP : Application Process ARFF : Airport Rescue and Fire Fighting
APA Allied Pilots Association ARFOR : Area Forecast
APANPIRG : Asia/Pacific Air Navigation Planning and ARH : Architecture
Implementation Regional Group ARIBA : ATM system safety criticality Raised Issues in
APAPI : Abbreviated Precision Approach Path Indicator Balancing Actors Responsibility
APATSI : Airport / Air Traffic Systems Interface (ECAC) ARINC : Aeronautical Radio Incorporated (a nonprofit
APB : APATSI Project Board corporation owned by member airlines to define form, fit
APC : Aeronautical Passenger Communications / and functions of avionics equipment)
Correspondence ARINC 306 : Guidance For Designers Of Aircraft-
APC : Aeronautical Public Correspondence Electronic Installations
APC : Assistant Planning Controller ARINC 307 : Aircraft Integrated Data System Wire Bundle
APCH : Approach Provisions
APD : Activity Predictor Display ARINC 404A : Air Transport Equipment Cases And
APDLC : Aircraft Proximity Data Link Communication Racking
(ICAO) ARINC 406A : Airborne Electronic Equipment
APDSG : ATM Procedures Development Sub-Group ARINC 408A : Air Transport Indicator Cases And Mounting
APE : Analysis Programme for Evaluation ARINC 413A : Guidance For Aircraft Power Utilisation And
API : Application Programming Interface Transient Protection
APIRG : Africa-Indian Ocean Planning and Implementation ARINC 414 : General Guidance For Equipment And
Regional Group (ICAO) Installation Engineers
APL : Abbreviated Flight Plan ARINC 415 : Operation/Technical Guidelines On Failure
APL : Applied Physics Laboratory Warning and Functional Test
APL : ATC Flight Plan ARINC 419 : Digital Data System Compendium
APLGT : Airport Lighting ARINC 421 : Guidance For Standard Subdivision of ATA
APM : Architecture Project Management Spec 100 Numbering System for Avionics
APMB : ACAS Programme Management Board ARINC 422 : Guidance For Modification Status Indicators
APMS Automated Performance Measurement System & Avionics Service Bulletins
APO : Airport Operator ARINC 424 : Navigation System Data Base
APO : Aircraft Performance and Operations ARINC 429 : Mark 33 Digital Information Transfer System



ARINC 528 : Airborne Tape Recorder Description
ARINC 533A : Airborne HF SSB/AM System ARINC 651 : Design Guidance For Integrated Modular
ARINC 541 : Airborne Magnetic Flight Data Recorder Electronics
ARINC 542 : Airborne Oscillograph Flight Data Recorder ARINC 659 : Backplane Data Bus for Integrated Modular
ARINC 542A : Digital Flight Data Recorder Avionics
ARINC 551 : Airborne Glide Slope Receiver - Mark 2 ARINC 701 : Flight Control Computer System
ARINC 557 : Airborne Voice Recorder ARINC 702 : Flight Management Computer, Supplement 4
ARINC 559A : Mark 2 Airborne HF SSB/AM System &5
ARINC 561 : Air Transport Inertial Navigation System - ARINC 703 : Thrust Control Computer
INS ARINC 704 : Inertial Reference System, Supplement 6
ARINC 566 : Airborne VHF Communications Transceiver ARINC 705 : Altitude and Heading Reference System
And Mark 1 VHF SATCOM System (AHRS)
ARINC 566A : Mark 3 VHF Communications Transceiver ARINC 706 : Subsonic Air Data System
ARINC 569 : Airborne Distance Measuring Equipment ARINC 707 : Radio Altimeter, Supplement 6
ARINC 569 : Heading and Altitude Sensor (HAS) ARINC 708 : Airborne Weather Radar
ARINC 571 : Inertial Reference System (INS) ARINC 709 : Airborne Distance Measuring Equipment,
ARINC 572 : Mark 2 Air Traffic Control Transponder Supplement 8
ARINC 573 : Aircraft Integrated Data System (AIDS) Mark ARINC 709A : Precision Airborne Distance Measuring
2 Equipment
ARINC 574 : Passenger Announcement, Entertainment & ARINC 710 : Mark 2 Airborne ILS Receiver
Service Multiplex System ARINC 711 : Mark 2 Airborne VOR Receiver
ARINC 575 : Mark 3 Subsonic Air Data System (Digital) ARINC 714 : Mark 3 Airborne SELCAL Systems
ARINC 576 : Mark 4 Subsonic Air Data System ARINC 715 : Airborne Passenger Address Amplifier
ARINC 577 : Audible Warning System ARINC 716 : Airborne VHF Communications Transceiver
ARINC 578 : Airborne ILS Receiver ARINC 717 : Flight Data Acquisition And Recording
ARINC 579 : Airborne VOR Receiver System
ARINC 585 : Electronic Chronometer System ARINC 718 : Mark 3 ATC Transponder
ARINC 591 : Quick Access Recorder For Aids System ARINC 719 : Airborne HF/SSB System
(OAR) ARINC 720 : Digital Frequency/Function Selection for
ARINC 592 : Airborne Passenger Tape Record Airborne
ARINC 594 : Ground Proximity Warning System (GPWS) ARINC 722 : Electronic Equipment Protection Video
ARINC 595 : Barometric Altitude Rate Computer System
ARINC 596 : Mark 2 Airborne SELCAL System ARINC 723 : Ground Proximity Warning System (GPWS)
ARINC 597 : Aircraft Communications Addressing And ARINC 724 : Mark 2 Aircraft Communications
Reporting System (ACARS) ARINC 724A : Mark 2 ACARS Avionics
ARINC 597A : Enhanced ACARS Avionics ARINC 724B : Aircraft Communications Addressing and
ARINC 59MA : Airborne Announcement Tape Reproducer Reporting System (ACARS)
ARINC 600 : Air Transport Avionics Equipment Interfaces ARINC 725 : Electronic Flight Instruments (EFIS)
ARINC 601 : Control/Display Interfaces ARINC 726 : Flight Warning Computer System
ARINC 602 : Test Equipment Guidance ARINC 727 : Airborne Microwave Landing System
ARINC 602A : Test Equipment Guidance ARINC 728 : Avionics Refrigeration and Cooling System
ARINC 603 : Airborne Computer Data Loader (ARCS)
ARINC 604 : Guidance For Design And Use Of built-In ARINC 729 : Analog And Discrete Data Converter System
Test Equipment (BITE) ARINC 730 : Airborne Separator Assurance System
ARINC 605 : Users Guide For ARINC 616 Avionics Subset ARINC 731 : Electronic Chronometer
Of ATLAS Language ARINC 732 : Mark 2 Airborne Passenger Audio
ARINC 606 : Guidance For Electrostatic Sensitive Device Entertainment Tape Reproducer, Supplement 1
Utilisation & Protection, Sup. 1 ARINC 735 : Traffic Alert and Collision Avoidance System
ARINC 608 : Standard Modular Avionics Repair And Test (TCAS), Supplement 1
System (SMART) ARINC 737 : On Board Weight and Balance System.
ARINC 609 : Design Guidance For Aircraft Electrical Supplement 1
Power Systems ARINC 738 : Air Data and Inertial Reference System
ARINC 610 : Guidance For Design and Integration of (ADIRS)
Aircraft Avionics Equipment In Simulators, Supplement 1 ARINC 739 : Multi-Purpose Control and Display Unit
ARINC 611 : Guidance For The Design and Installation Of ARINC 740 : Multiple-Input Cockpit Printer
Fuel Quantity Systems, Sup. 1 ARINC 7411P2 : Aviation Satellite Communication System
ARINC 612 : BITE Glossary : Part 2 - Satellite Design
ARINC 613 : Guidance for Using the Ada Programming ARINC 741P1 : Aviation Satellite Communication System :
Language in Avionics Systems Part I- Aircraft Installation Provisions
ARINC 614 : Standard Firmware Loader For Avionics ARINC 741P4 : Aviation Satellite Communications System
Shops : Part 4 - Specification and Description Language
ARINC 615 : Airborne Computer High Speed Data Loader, ARINC 742 : Design Guidance For Windshear Warning
Supplement 3 and Guidance Equipment
ARINC 616 : Avionics Subset of ATLAS Language ARINC 743 : Airborne Global Positioning System Receiver
ARINC 620 : Data Link Ground System Standard And ARINC 743A : GPS/GLONASS Sensor
Interface Specification ARINC 744 : Full Format Printer
ARINC 622-1 : The ACARS Convergence Process ARINC 745 : Automatic Dependent Surveillance,
ARINC 624 : Design Guidance For Onboard Maintenance Supplement 1
System ARINC 746 : Cabin Communications System, Supplement
ARINC 626 : Standard ATLAS For Modular Test 1
ARINC 627 : Programmers Guide For Smart Systems ARINC 747 : Flight Data Recorder
Using ARINC 626 ATLAS ARINC 748 : Communications Management Unit (CMU)
ARINC 629 : Multi Tester Data Bus : Part 1 - Technical ARINC 750 : VHF Data Radio (VDR)
Description ARINC 751 : Gate-Aircraft Terminal Environment Link
ARINC 629 : Multi-Transmitter Data Bus (Gatelink) - Aircraft Side
ARINC 631 : Aviation Packet Communications Functional ARINC 752 : TFTS Airborne Radio Sub-System



ARINC 753 : HF Data Link System ASE : Application Service Element
ARINC 757 : Cockpit Voice Recorder (CVR) ASECNA : Agency for the Safety of Air Navigation in Africa
ARINC539A : Airborne 400 Hz AC Tape Reproducer and Madagascar
ARLO : Air Liaison Officer ASEP : ACCS Surveillance Exploratory Prototype (NATO /
ARM : ADS Report Message SHAPE)
ARM : Air Request Message ASHTAM : NOTAM relating to volcanic and/or dust activity
ARM : Anti Radiation Missile (ICAO)
ARM : Armenia ASI : Aerospace Sciences Inc.
ARMATS : State Closed Joint-Stock Company of ASI : Asia Region (ICAO)
Armenian Air Traffic Services ASI Air Speed Indicator
ARN : ATS Routes and Associated Navigation Means ASIC : Application-Specific Integrated Circuit
ARN-1 (Table) : Basic ATS Route Network in the Lower ASM : Ad-hoc Schedule Message
and Upper Airspace ASM : AirSpace Management
ARN-2 (Table) : Radio Navigation Aids Associated with ASMAC : Automated System for Management of
the Basic ATS Route Network Terminal Area and Aeronautical Information and Charting
Instrument Approach Procedures ASMC : Airspace Management Communications
ARN-V2 : ATS Route Network - Version 2 (ECAC, EATM) ASMGCS : Advanced Surface Movement Guidance and
ARN-V3 : ATS Route Network - Version 3 (ECAC, EATM) Control Systems
ARNG : Arrange ASMI : Airport Surface Movement Indicator
ARO : Air Traffic Service Reporting Office ASMT : ATM Safety Monitoring Tool
ARP : Aerodrome Reference Point ASMTF : Airspace Management Task Force
ARP : Aerospace Recommended Practice ASN : Abstract Syntax Notation
ARP : Automated Route Planning ASN 1 : Abstract Syntax Notation One
ARPA : Advanced Research Project Agency ASNO : Approach Sequence Number
ARPL : ADEXP Format Repetitive Flight Plans Message ASO : Air Surveillance Officer
ARQ : Automatic error Correction ASOC : Air Sovereignty Operations Centre
ARQ : Automatic Request Repeat ASOC : Army Support Operations Centre
ARQ : Automatic Response to Query ASOP : Airspace Organisation and Procedures
ARR : Arrive or Arrival or Arrival Message ASOS : Automatic Surface Observing System
ARR SP : Arrival Sequence Planner ASP : Adjustable System Parameter
ARS : Aeronautical Radio Navigation Service ASP : Aeronautical Fixed Service Systems Planning for
ARS : Avoidance Routing Scheme Data Interchange Panel
ARS : Special air-report (message type designator) ASP : Air Space
ARSA : Airport Radar Serve Area ASP : AIRCOM Service Processor (SITA)
ARSC : Air Rescue Sub Centre ASP : Arrival Sequence Planner
ARSR : Air Route Surveillance Radar asp : assigned speed
ARST :Arresting (specify (part of) aircraft arresting ASPH : Asphalt
equipment) ASPP : Aeronautical Fixed Service Systems Planning for
ART : Analysis and Replay Tool Data Interchange Panel
ARTAS : Air Traffic Management Surveillance Tracker and ASQF : Application Specific Qualification Facility (part of
Server System EGNOS)
ARTAS TF : ARTAS Task Force ASR : Airport Surveillance Radar (TAR)
ARTCC : Air Route Traffic Control Centre ASR : Altimeter Setting Region
Artemis : An ESA experimental telecommunications ASRS : Aviation Safety Reporting System
satellite hosting an EGNOS navigation transponder ASRT : Air Support Radar Team
ARTES-9 : Advanced Research in Telecommunication ASSR : Assigned SSR code (FPPS/DECADE)
Systems ASTA : Airport Surface Traffic Automation
ARTS : Area Radar Training Squadron ASTER : Aviation Safety Targets for Effective Regulation
ARTS : Automated Radar Terminal System ASTERIX : All-purpose Structured Eurocontrol Radar
ARU : Archive to UNIX Information Exchange.
ARU : Airspace Reservation Unit ASTP : ADS Studies and Trials Project
AS : Airspeed ASW : Anti Submarine Warfare
AS : Airspace ASW : Air Situation Window
AS : Altostratus AT At (an altitude)
AS, A-S : Anti-Spoofing AT : Actual Time Count Down
ASA : Aircraft Situation Awareness AT : Air Transport
ASA : Automated Support to ATC AT : At Time
ASA : Automatic Slot Assignment AT…: At (following by time at which weather change is
ASA System : Automatic Slot Assignment System forecast to occur)
ASAP : Aircraft Separation Assurance Programme AT : Austria (ISO Country Code)
ASAP : As soon as possible / practicable AT : Royal Air Maroc (airline)
ASARS : Air Surveillance Airborne Radar System ATA : Actual Time of Arrival
ASAS : Airborne Separation Assurance System ATA : Air Transport Association (of America)
ASC : Ascend to or Ascending to ATAC : Airspace Traffic Data Capture
ASCAP : Automatic SSR Code Assignment Procedure ATAF : Allied Tactical Air Force
ASCB : Avionics Standard Communication Bus ATAFF : Air Traffic Arbitrated Free Flight
ASCII : American Standard Code for Information ATAG : Air Transport Action Group
Interchange / Exchange ATAR : Automatic Air Reporting
ASCOT : Airport Slots Compliance Tools ATARS : Automatic Traffic Avoidance and Resolution
ASDA : Accelerated Stop Distance Available System
ASDAR : Aircraft to Satellite Data Relay ATAS : Air Traffic Advisory Service
ASD : CFMU/ENGD - Architecture & System Design ATC : Air Traffic Control
Section ATCA : Air Traffic Control Association (US)
ASDE : Airport Surface Detection Equipment ATCA : Allied Tactical Communications Agency
ASD-TF : Air Situation Display Task Force ATCA : Air Traffic Control Assistant
ASE : Altimetry System Error ATCAP : Air Traffic Control Automation Panel (ICAO)



ATCAS : (Sweden) ATC Automated System CASA)
ATCC : Air Traffic Control Centre ATO : Airborne Traffic Observation
ATCC : Air Traffic Control Clearance ATOC : Allied Tactical Operations Centre
ATCCC : Air Traffic Control Command Centre ATOPS : Advanced Transport Operating System
ATCEUC : Air Traffic Controllers European Unions Co- ATOT : Actual Take Off Time
ordination ATP : At…(time or place)
ATCgram : Illustration in graph form of the main functional ATRAC : Air Navigation Services Employee Training
levels of ATC systems Concept
ATC-HMI : Air Traffic Control Human Machine Interface ATRACC : ATC System for Riga Area Control Centre
ATCI : Airport ATC and Information systems ATRK : Alone Track Error
ATCO : Air Traffic Controller or Air Traffic Control Officer ATS : Air Traffic Services
ATCRBS : Air Traffic Control Radar Beacon System ATS : Automatic Throttle System
ATCRU : Air Traffic Control Radar Unit ATSA : Air traffic Services Authority (Bulgaria &Croatia)
ATCS : Air Traffic Control Service AT-SAT : Air Traffic Selection and Training
ATCS Advanced Train Control Systems ATSD : Air Traffic Situation Display
ATCSCC Air Traffic Control System Command Center ATSC Air Traffic Service Communications
ATCSQ : ATC Safety Questionnaire (Communications related to air traffic services. This
ATCT : Airport Traffic Control Tower includes ATC, aeronautical and meteorological
ATCU : Air Traffic Control Unit information, position reporting and services related to
ATD : Actual Time of Departure safety and regularity of flight)
ATD : Along Track Distance ATSEP : Air Traffic Safety Electronics Personnel
ATDS : Airborne Tactical Data System ATSIS : Air Traffic Services Investigation System
ATE : Automatic Test Equipment ATSN : Air Traffic Service Network
ATFC : Air Traffic Flow Controller ATSO : Air Traffic Services Operator
ATFM : Air Traffic Flow Management ATSORA : Air Traffic Services Outside Regulated
ATFM : CFMU/DEVD - ATFM Application Section Airspace
ATFMC : Air Traffic Flow Management Communications ATSP : Air Traffic Service Providers
ATFMO : Air Traffic Flow Management Organisation ATSSD : ATS Standards Department
ATFMP : Air Traffic Flow Management Position ATSU : Air Traffic Service Unit
ATFMS : Air Traffic Flow Management System ATSup : Air Traffic Supervisor
ATFMU : Air Traffic Flow Management Unit ATT : Along Track Tolerance
ATFR : Air Traffic Flow Regulator ATT : Attitude Indicator
ATG : Air Traffic Generator ATTN : Attention
ATHR Autothrust System ATWR : Apron TWR
ATI : Automatic Tracking Initiation ATYP : Aircraft Type
ATIC : Administrative and Technical Inspection Committee ATZ : Aerodrome Traffic Zone
(Agency structure) AU : Arbitrary Unit
ATIF : ATN Trials Infrastructure AU : Australia (ISO Country Code)
ATILO : Administrative Tribunal of the International Labour AUA : ATC Unit Airspace
Organisation Aud : Audio aids
ATIS : Automatic Terminal Information Service AUP : Airspace Use Plan
ATLAS : Air Traffic Land and Air Study [or Airborne AUS : Airspace Utilisation Service
Systems] (European Commission) AUSOTS : Australian Organised Track Structure
Atm : Tyre Pressure (KG/cm3) AUSTRO CONTROL : Österreichische Gesellschaft für
ATM : Air Traffic Management Zivilluftfahrt mbH (AT)
ATM : Air Transportation Management AUTH : Authority
ATM : Asynchronous Transfer Mode AUTH : Autorized or Authorization
ATM 2000+ : Eurocontrol ATM Strategy for the Years AUTOB : Automatic Weather Reporting System
2000+ AUTOCAD : Automatic Computer Aided Design
ATMAS : Air Traffic Management Automated System (It. AutoNav : Auto-Navigation
ATFM) AUTOVON : Automatic Voice Network
ATMC : Air Traffic Management Centre AUW : All Up Weight
ATMCP : ATM Operational Concept Panel (ICAO) AUX : Auxilliary
ATMCT : Air Terminal Movement Control Team Centre AV : Audio-visual aids
(NATS UK) AV : Avianca
ATMG : Air Traffic Management Group AVAIL : Available
ATMO : Air Traffic Management Organisation AVBL : Available
ATMOS : Air Traffic Management Operating System A-VASIS : Advanced Visual Approach Slope Indicator
ATMS : Advanced Air Traffic Management System System
ATN Aeronautical Telecommunications Network (the AVENUE : ATM Validation Environment for Use towards
collection of ground subnetworks, air/ground subnetworks EATMS
and airborne subnetworks interconnected by ATN routers AVG : Average
that support computer-to-computer, internetwork AVGAS : Aviation Gasoline
communication and message transfer between host AVHRR Advanced Very High-Resolution Radiometer
computers using the OSI ISO protocol architecture) AVI : Audio/Video Interleaved
ATN EURET : see EURATN AVOL : Aerodrome Visibility Operational Level
ATN RD : Aeronautical Telecommunication Network AVPAC : Aviation VHF Packet Communications
Routing Domain AW : Area Width
ATN RDC : Aeronautical Telecommunication Network AW : Aerial Work
Routing Domain Confederation AW/P : Active Way Point
ATNC : ATN and Communication Architecture AWACS : Airborne Warning and Control System
ATNI : Aeronautical Telecommunication Network Internet AWAS Automated Weather Advisory Station
ATNP : Aeronautical Telecommunication Network Panel AWIPS Advanced Weather Interactive Processing System
(ICAO) AWIR : Automatically generated What-If Re-routing
ATNSI : ATN System Inc. (US) AWOG : All Weather Operations Group
ATO : Actual Time Overhead of Overflying (CFMU - AWOP : All Weather Operations Panel (ICAO)



AWOS : Automatic Weather Observing System BIAC : Brussels International Airport Company
AWP : Ancillary Working Position BIF : Deliver Implementation Benefits Faster (EATCHIP
AWP : Arrival Waypoint Adaptation)
AWR/Rn : Alternative flight plan on the basis of the Aircraft BIRDTAM : NOTAM on Bird Activity
Operator „What-If“ Re-route Function (AOWIR), whereby BIS : Boundary Intermediate System
„n“ designates the current number of the AOWIR BIST : Build-In Self Test
alternative flight plan BIT : Built-In Test
AWTA : Advise at What Time Table BITE : Built-In Test Equipment
AWX : All Weather BKN : Broken (meteo)
AWY : Airway BL : Blowing (meteo)
AY : Finnair (airline) BLDG : Building
AZ : Aerodrome zone BLO : Below clouds
AZ : Alitalia (airline) BLW : Below
AZ : Azerbaijan (ISO countries Codes) BMUN : Better Meet User Needs (EATCHIP Adaptation)
AZM : Azimuth BN : Backbone Node (RMCDE/ RADNET)
BNC : Backbone Network Computer
-B- BND : Bound
BNF : Backus Naur Form
B : At or Below (constrained altitude) BNL : Benelux
B : Belgium BOI : Biographical Oriented Interview
B : Blue BOMB : Bombing
B&D : Bearing and Distance BOS : Behaviour anchored Rating Scales
B&H : Bosnia and Herzegovina BP : Business Plan
B/C : Benefit / Cost BPF : Band Pass Filter
B/CRS : Back Course BPN : Boundary Point of Entry
BA : Barometric Altitude bps : bits per second
BA : Bosnia and Herzegovina (ISO Country Code) BPS : Boundary Point Sector
BA : Breaking Action BPSK : Binary Phase Shift Keying
BA : British Airways (airline) BPSX : Boundary Point Sector Exit
BAA : British Airport Authority BR : Mist (meteo)
BADA : Base of Aircraft Data ; Aircraft performance Data BR : Brazil (ISO Country Code)
Base BR : Eva Air (airline)
BAF : Belgian Air Force BRA : Basic Rate Access
BA FAIR : Braking action Fair BRA : Bearing, Range and Altitude
BALPA British Air Line Pilots Association BRF : Short (used to indicate the type of approach desired
BA NIL : Braking Action Nil or required)
BA POOR : Braking Action Poor BRG : Bearing
BARS : Behaviour Anchored Rating Scales BRITE : Basic Research in Industrial Technologies for
BARTCC : Berlin Air Route Traffic Control Centre Europe = EURAM
BASE : Cloud Base B-RNAV : Basic Area Navigation
Base AM : Base Arrival Manager BRNAV : Basic Air NAVair Traffic Control Unit
Base AMD : Base Arrival Manager Display BRKG : Braking
BASIS British Airways Safety Information System BRT Brightness
BAST : Basic ATC Skills Trainer BS : Band Stop (ACS)
BATAP : `Type-B' Application To Application Protocol BS : BootStrap (RADNET Introduction - MAS)
BAZ : Bundesamt für Zivilluftfahrt (Austria) (AT) / Austrian BS : Commercial Broadcasting station
aviation authority BSC : Binary Synchronous Communications
BC : Patches (meteo) BSP : Aircraft Parameter Downlink (service)
BC : Back Course BSS : Best Signal Selection
BCA : Border Crossing Authority BSU : Beam Steering Unit
B-CAS : Beacon Collision Avoidance System BTC : Basic Training Course
BCBP : Bilateral Communication Plan Co-ordination BTEC : Business and Technician Education Council
BCD : Binary-Coded Decimal BTH (R) : Beyond the Horizon (Radar)
BCFG : Fog Patches BTL : Between Layers
BCMT : Beginning of Civil morning twilight BTN : Between
BCN : Beacon BVR : Beyond Visual Range
BCST : Broadcast BW : Bandwidth
Bd : Baud BWP : Budget and Work Programme Planning
BD : British Midland (airline) BY : Belarus (ISO countries Codes)
BDP : Brussels ACC Computer BYD : Beyond
BDR : Battle Damage Repair
BDRY : Boundary -C-
BE : Belgium (ISO Country Code)
BECMG : Becoming (meteo) C : Centre (runway indentification)
BEM : Boundary Estimate Message (SARP) C : Degree Celcius
BENELUX : Belgium, Netherlands and Luxembourg C/A Code : Course / Acquisition Code
BER : Bite Error Rate C/d : Capacity demand ratio
BERM : Snowbank(s) Containing Earth/Gravel C/M : Carrier-to Multi-Path Ratio
BF MarkAir C/N : Carrier-to-Noise Ratio
BFD : Basic Flight Data message C/N0 : Carrier-to-Noise-Density Ratio
BFL : Blocked Flight Level Area C/S : Call Sign
BFR : Before C102 (TSO) : Helicopter Radar Approach, Issued 04/02/84
BFWG : Budgetary and Financial Working Group (RTCA DO-172, Issued 03/83)
BG : Bulgaria (ISO Country Code) C104(TSO) : Microwave Landing System (MLS) Receiving
BGD : Background Equipment, Issued 06/82 (RTCA DO-174, Issued 03/82)
BHL-System : (Name of HR-registration system) C105(TSO) : Optional Display For Weather Radar, Issued



06/84 (RTCA DO-174, Issued 03/81) CAAS : Class A Airspace
C110(TSO) : Airborne Thunderstorm Detector, Issued CAAS : Computer Aided Approach Sequencing
01/01/01,(RTCA DO-187, Issued 11/84 CAB : Civil Aeronautics Board
C115(TSO) : RNAV Equipment Using Multi-Sensor, Issued CAC : Centralised Approach Control
06/86 (RTCA DO-187, Issued 11/84) CAD : Computer Aided / Assisted Design
C118(TSO) : Airborne TCAS I Equipmen4 Issued 08/88 CADAS : Computer Controlled Avionics Data Acquisition
(RTCA DO-197, Issued 3/87) System
C119(TSO) : Airborne TCAS II Equipment (RTCA Do-185, CADF : Centralised Airspace Data Function (ECAC)
Issued 09/83) CADIN : Czech Automated Data Interchange Network
C120(TSO) : RNAV Equipment Using OMEGA/VLF, CADS : Combined Arrival and Departure
Issued 01/88 (RTCA DO-185 issued 9/83) Sequencing/Study (APATSI)
C2 level : Security level in the United States Department CADS : Computer aided Departure System
of Defense CAE : Computer Aided Engineering
C31d(TSO) : High Frequency (HF) Communications CAEP : Committee on Aviation [Environmental] Protection
Transmitting Equipment, Issued 04/84 (RTCA DO-163, Emissions Operational (Measures Working Group, WG/4) ;
Issued 03/76) Commission on Aviation Environmental Protection (ICAO)
C32d(TSO) : High Frequency (HF) Communications CAERAF : Common American-European Reference ATN
Receiving Equipment, Issued /83 Facility
C34e(TSO) : ILS Glide Slope Receive Equipment, Issued CAI : Civil Aviation Inspection
01/88 (RCTA DO-192, Issued 07/86) CAI : Computer Assisted Input
C35d(TSO) : Radio Marker Receiving Equipment, Issued CAIIS : Computer Aided Imagery Interpretation System
04/71 (RTCA DO-143, Issued 01/70) CAIR : Confidential Aviation Incident Reporting
C36e(TSO) : ILS Localizer Receiver Equipment, Issued CAIRDE : Civil Aviation Integrated Radar Display
01/88 (RTCA) DO-195, Issued 11/86) Equipment (IRE)
C37d(TSO) : VHF Comm transmitting Equipment, Issued CAL : Computer Aided Learning
08181 (RTCA DO-157, Issued 08/81 (RTCA DO-157, CALLSGN : Callsign
Issued 08/74) CALM : Computer Assisted Landing Management System
C38c(TSO) : VHF Comm Receiving Equipment; Issued CALS : Computer-aided Acquisition and Logistic Support
08/81 (RTCA DO-156, Issued 08/74) CAM : Computer Aided Manufacturing
C38d(TSO) : VHF Comm: Receiving Equipment, Issued CAM : Conflict Alert Message
08/81 (RTCA DO-186, Issued 1/84) CAMI : Civil Aeromedical Institute
C3CM(TSO) : Command, Control and Communications CAMOS : Central ARTAS Maintenance & Operational
Countermeasures Support
C3T : Controller Tools and Transition Trials. See EVP. CAMPS : Computer Aided Message Processing System
C40c(TSO) : Airborne VOR Receiving Equipment, Issued CAMUS : Czech Automated Multi radar System
01/88 (RTCA DO-1996, Issued 11/86) CAN Proj. : Croatian Air Navigation Project
C41d(TSO) : Airborne ADF Equipment, Issued 05/86 CANAC : Computer Assisted National ATC Centre (B)
(RTCA DO-179, Issued 05/82) CANSO : Civil Air Navigation Services Organisation
C50c(TSO) : Audio Selector Panel and Amps, Issued CAO : Computer Assisted Operations
01/83 (RTCA DO-170, Issued 01/80) CAOFA : Co-ordination of Air Operations in the Forward
C57a(TSO) : Headsets And Speakers, Issued 01/83 Area
(RTCA DO-170, Issued 01/80) CAP : Combat Air Patrol
C58a : Aircraft Microphones, Issued 01/83 (RTCA DO-170, CAP : Controller Access Parameters
Issued 01/80) CAPAN : Capacity Analyser
C59 : Selective Calling (SELCAL) Equipment, Issued CAPC : Civil Aviation Planning Committee
01/01 (RTCA DO-93, Issued 2/59) CAPE : Computer Assisted Planning Experiment
C60b : RNAV Equipment Using LORAN -C, Issued 05/88 CAPP : CFMU/DEVD - Client Applications Section
(RTCA DO-194, Issued 11/86) CAPSIN : CAA Packet Switched Integrated Network (UK)
C63c : Airborne Weather Radar, Issued 08/83 (RTCA DO- CAR : Caribbean Region
173 Issued 11/80) CARAT : Computer-Aided (Assited) Route Allocation Tool
C65a : Doppler Radar Air Speed Equipment, Issued 08/83 CARD : CNS Applications - Research and Development
(RTCA DO-158, Issued 11/75) CARD : Conflict And Risk Display (ODID)
C66b : Airborne DME (Distance Measuring Equipment), CARE : Co-operative Actions of ATM Research and
Issued 08/81 (RTCA DO-1514, Issued 04/60) Development in Eurocontrol
C67 : Airborne Radar Altimeters, Issued 11/64 (RTCA DO- CARFE : Conference on Airport and Route Facility
103, Issued 4/60) Economics (ICAO)
C68a : Dead Reckoning Computer Equipment, Issued CART : Classification And Regression Trees
08/83 (RTCA DO-158, Issued 10/75) CAS : Calibrated (Computed) Air Speed
C74e : Airborne ATC Transponder Equipment, Issued CAS : Close Air Support
01/01 (RTCA DO 161A, Issued 05/76) CAS : Collision Avoidance System
C87a : Low Range Radar Altimeters, Issued 01/01 (RTCA CAS : Computerised Assessment System
DO-155, Issued 01/74) CASA : Computer Assisted Slot Allocation
C91a : Emergency Locator Transmitter, Issued 04/85 CASE : Computer Aided Software Engineering
(RTCA DO-183, Issued 5/83) CASI : CFMU Aircraft Situation Image
C92b : Ground Proximity Warning (GPWS) Equipment, CASOR : Civil Area Services Operations Room
01/01 (RTCA DO-161A, Issued 05/76) CAST : Consequences of future ATM systems for air traffic
C94a : OMEGA Receiving Equipment, Issued 08/81 controller Selection and Training
(RTCA DO-164A, Issued 09/79) CASTA : Controller Associate for Strategic and Technical
C : Centigrade Advice
CA : Canada (ISO Country Code) CAT x : Category x Precision Approach (I, II of III)
CA : Civil Aviation CAT I Facility providing operation down to 200 feet
CA : Conflict Alert decision height and runway visual range not less than
CA : Course to an Altitude (ARINC 424 Path Terminator) 2600 feet.
CAA : Civil Aviation Authority (Great Britain) CAT II Facility providing operation down to 100 feet
CAAC : Civil Aviation Authority of China decision height and runway visual range not less than
1200 feet.



CAT II a Facility providing operation with no decision CDA : Conflict Display Area. Coordination Approval /
height limit to and along the surface of the runway with CoorDination Acceptance (message)
external visual reference during final phase of landing and CDA : Current Data Authority (ICAO)
with a runway visual range not less than 700 feet. CDB : Central Data Base
Cat : Category CDG : Roissy Charles-de-Gaulle Airport
CAT : Clear Air Turbulence CDI : Coordination Information
CAT : Computer Aided Testing CDI : Course Deviation Indicator
CAT : Commercial Air Transport CDM : Collaborate (Cooperative) Decision Making (central
CAT : Computer Assisted Teaching / Training supporting features of gate to gate, and for enhancing
CAT : Continuous Attention Task capacity [airports])
CATCAS : Copenhagen Air Traffic Control Automated CDMA : Code Division Multiple Access
System (DK) CDN : Airspace Crossing Co-ordination Message / Co-
CATCO : Chief ATC Operations ordination (message type designator)
CATIA : TF on CNS/ATM Implementation Aspects CDP : Central Data Processing
CATSA : Croatian air Traffic Services Authority CDP : Computer Diagnostics Program
CATSIM : CAA Air Traffic Simulator (UK) CDPS : Central Data Processing System
C-ATSU : Controlling ATS Unit CDR : Coded Departure Routes. Predefined routes used to
CAUTRA : Automated Computer System for Air Traffic route air traffic around areas of severe weather.
CAVOK : Clouds and Visibility OK (Visibility, cloud and CDR : Conditional Route
presend weather better than prescribed values or CDR : Conflict Detection and Resolution
conditions) CDR : Co-ordination Request (message)
CB : Central Battery CDR : Critical Design Review
CB : Suckling Airways (airline) CDRL : Contracts Data Requirements List (MAS/DFS -
CB : Cumulonimbus (meteo) ODS)
CBA : Cost Benefit Analysis CD-ROM : Compact Disk / Read Only Memory
CBA : Cross Border Area CDS : Controller Display Support
CBAS : Class B Airspace CDSEPT : Committee to Develop Standards for
CBSA : Class B Surface Area Educational and Psychological Testing of The American
C-Band : Frequency Band Educational research Association, The American
CBI : Computer Based Instruction Psychological Association, and The National Council on
CBN : Common Backbone Network (subnetwork RAPNET Measurement in Education.
= system of the national ATS, DFS = PSN) CDT : Command Delivery Time
CBPM : Computer-Based Performance Measure CDTI : Cockpit Display of Traffic Information
CBS : Cost/Benefit Studies CDTS : Console Detailed Technical Specification
CBT : Computer Based Tool CDU : Control and Display Unit (pilots' interface to the
CBT : Computer Based Training FMS)
CC : Contractual Conditions CE : Committee of Management
CC : Cirrocumulus CE : European Commission / Commission européenne
CCA : (or CCB, CCC..etc..in sequence) corrected CEAC : Committee for European Airspace Co-ordination
meteorological message (message type designator) (NATO Group) renamed on 27.4.98 by the North Atlantic
CCAS : Class C Airspace Council (=NATMC)
CCB : Change Control Board CEAS : Class E Airspace
CCC : Cellular CNS Concept CEATS : Central European Air Traffic Services (Austria,
CCC : Central Computer Complex Croatia, Czech Republik, Hungary, Italy, Slovakia and
CCC : Command, Control and Communications Slovenia [Bosnia, Herzegowina])
CCC : Common Core Content (of ATC Training) CEATS LSG : Central European Air Traffic Services Legal
CCCC : Cross Channel Co-ordination Centre Sub Group
CCCI, C3I : Command, Control, Communications and CEATS UAC : Central European Air Traffic Services
Intelligence (network) Upper Airspace Control Centre
CCDS : Code Callsign Distribution System CEC : Commission of the European Communities ;
CCF : Centralised Control Function (LATCC) European Commission / Commission des Communautés
CCFT : Cold Cathode Fluorescent Tube Européennes (=CEE) ; Commission européenne
CCG : CEATS Co-ordination Group CEECs : Countries of Central and Eastern Europe ;
C-Channel : Circuit Mode Channel Central and Eastern Europe Countries
CCIP : Code-Callsign Input Position CEF : Capacity Enhancement Function
CCIS : Closed Circuit Information System CEFA : Co-operation for Environmentally Friendly Aviation
CCL : Code Callsign List (ERA, ACI, AEA, AECMA, EBAA, EUROCAE)
CCLKWS : Counterclockwise CEO : Chief Executive Officers
CCM : Computerized Control and Monitoring CEP : Circular Error Probable
CCMS : Committee on the Challenges of Modern Society CER : Cancel Emergency Mode Request
CCP : Circuit Switched Public Data Network CES : Central and Eastern European States
CCP : Configuration Control Plan CESA : Class E Surface Area
CCR : Cancel Contract Request CESAR : Course Evaluation Sheets Analysis and
CCS : Code CallSign Reporting
CCSA : Class C Surface Area CESC : Chief Executive Standing Conference (see CEO)
CCTV : Closed Circuit TeleVision CEU : Central Executive Unit (ATM / CFMU)
CCW : Counter-Clockwise CEU-E : Central executive unit with Responsibility for
CD : Candela Eastern Europe
CD : Conflict Display (ODID) CEU-W : Central executive unit with Responsibility for
CD : Council Directive Western Europe
CD : Course to a DME Distance (ARINC 424 Path CEW : Civil Engineering Works
Terminator) CF : Change frequency to….
CD&A : Conflict Detection and Avoidance CF : Course to a Fix (ARINC 424 Path Terminator)
CD2 : Common Digitizer 2 CFAR : Constant False Alarm Rate (or Regulation)
CD-2 : Transmission format for radar data CFB : Central Flight plan Bank
CDA : Client Defined Area CFCF : Central Flow Control Facility



CFD : Change to Flight Data Message CLA : Clear type of ice formation
CFDS : Central Flight Data Suite (PALLAS system) CLA : OCM Clearnace Echoback Message (message in
CFE : Customer Furnished Equipment the OCM Service)
CFEP : Communications Front End Processor CLB Climb Detent of the Thrust Levers
CGL : Circling Guidance Light(s) CLBR : Calibration
CFIT : Controlled Flight into Terrain CLD : Cloud
CFL : Cleared (Current) Flight Level CLD : DCL Clearance Message (message in the DCL
CFM : Central Flow Management (services) Service)
CFM : EEC business area - support to ATFM CLG : Calling
CFMU : Central Flow Management Unit CLIMAX : Multi-station carrier offset mode, with voting
CFMUSC : CFMU Steering Committee override
CFTPD : Central File of Transponder Performance Data CLKWS : Clockwise
(ECC) CLNP : Connection Less Network Protocol
CFR : Code of Federal Regulations CLNS : Connection Less Network Service
CG : Center of Gravity CLR : Clear or cleared to or clearance
CGAS : Class G Airspace CLSD : Closed
CGS Centimeter-gram-second CLTP : Connection Less Transport Protocol
CH : Channel CLW : Communications List Window
CH : Switzerland (ISO Country Code) CLX : OCM Clearance Message
CHA : Character cm : Centimeter
CHAID : Chi Square Automatic Interaction Detection CM : Configuration (Context) Management
CHAN : Channel CM : Common Memory (CBN - CNG)
Chap. : Chapter CM : Conformance Monitoring
CHG : Change Message CM : Critical Milestone (MAS/DFS - ODS)
CHG : Change of Modification CMA : Central Monitoring Agency (NAT)
CHI : Computer-Human Interface CMA : Context Management Application
CHIEF : Project Switzerland (CH), Italy (I), Spain (E), CMB : Climb
France (F) CMB : Combined (PSR and SSR)
CHIRP : Confidential human Factors Incident Reporting CMC Central Maintenance Computer
Programme CMC : Central Master Clock
CHMI : CFMU Human Machine Interface CMC : Constant Mach Blimb
CI : Cirrus CMCSG : Civil and Military Co-ordination Sub-Group
CI : Configuration Item CMG : Crisis management Group
Cl : Cost Index CMIC : Civil Military Interface Standing Committee (New
CI : China Airlines (airline) Convention)
CI : Course to Intercept (ARINC 424 Path Terminator) CMIP : Contract Management and Inspection Procedures
CIA : CFMU Internet Application CMIS/CMIP : Common Management Information System /
CIADN : Croatian Integrated Aeronautical Data Network Protocol
CIC : Clearances and Information Communications CMMC : Central Monitoring and Management Centre
CICT : Convergence and Implementation Coordination CMMC : Common Maintenance Monitoring and Control
Team (renaming of SICT) CMOS : Complementary Metal Oxid Semiconductor
CID : Computer Interface Device CMPL : Completed or Completion or complete
CIDIN : Common ICAO Data Interchange Network CMS : Central Message Switch
CIEL : Common Interface Exchange Language CMS : Common Modular Simulator (CMTP)
CIG(s) : Ceiling(s) CMSA : Carrier Sense Multiple Access (ICAO-ADS)
CIM : Customer Information Management CMSND : Commisissioned
CIMIL : Civil/Military Co-ordination CMT : Core Management Team
CINCAT : Capacity Increase through Computer Assistance CMT : Critical Milestone Test (MAS/DFS - ODS)
Tools CMTP : Common Medium Term Plan
CINCENT : Commander in Chief Central Europe CMU : Communications Management Unit
CINTIA : Control of Inbound Trajectories of Individual CMV : Coverage Measurement Volume
Aircraft CN : Change Notice
CIO : Conventional International Origin CN : China (ISO Country Code)
CIP : CFMU Implementation Plan CN : Common Network (INTNET/RADNET)
CIP : Convergence and Implementation Programme CN : Permanent Commission for the safety of air
CIS : Commonwealth of Independent States (States of navigation
former USSR) CNACC : Common National Area Control Centre
CIS : Cooperative Independent Surveillance CNATCC : Common National Air Traffic Control Centre
CIS : Critical Incident Stress (Bulgaria)
CISD : Critical Incident Stress Debriefing CNG : Common Network Group
CISM : Critical Incident Stress Management (HRT) CNL : Cancel(lation) message (ICAO)
CISMO : Centralised International System Management CNS : Communication, Navigation and Surveillance
Organisation CNS : Study Group of Alternates
CIT : Compressor Inlet Temperature CNS/ATM : Communication, Navigation and Surveillance /
CIT : Critical Incidence Technique Air Traffic Management
CIT : Near or over large towns CNS/ATM-1 : Communication, Navigation and
CITRAC : Common Interface for Trajectory Calculation Surveillance / Air Traffic Management Package 1
CIU : Cabin Interface Unit CNTRLN : Centerline
CIV : Civil CO : Connection Mode Service
CJEC : Court of Justice of The European Communities CO Continetnal
(=CJEC, COJEC now European Court of Justice) COBALT : Common Objective Alignment Team
CJI : Controller Justification Indicator COBT : Calculated Off Block Time
CK : Check COC : Combat Operations Centre or Concept
CL : Centre Line COCESNA : Central American Corporation For Air
CL : Cleared Navigation Service
CL : Connectionless Mode Service COCOS : Computer Controlled SSR Code Assignment



Procedures COSAAC : Common Simulator to Assess ATMF Concepts
COD : Common Medium-Term Plan Overview Document COSP : Connection Oriented Session Protocol
CODA : Central Office of Delay Analysis COSPAS : Space system for the search of vessels in
CODE : Aircraft address (expressed in the form of an distress (translate. from Russian)
alphanumerical code of six hexadecimal characters) when COST : (European) Cooperation in the Field of Scientific
required by the appropriate ATS authority and Technical Research
CODEC : Coder/Decorder (ACS) COSU : CFMU/ENGD - Core Systems Unit
CoE : Centre of Expertise COSYNUS : AIRBUS Training Database
COF : Change of Frequency COT : At the Coast
COFA : Comando Operacional Força Aérea (PT) COTP : Connection Oriented Transport Protocol
COFAR : Common Options for Airport Regions COTR Contracting Officer's Technical Representative
COFEE : Consolidated (Checked) Operational data COTS : Commercial Off-The-Shelf (System)
FEEder COV : Cover or Covered or Covering
COG : Coordination Group (meeting of the EANPG CP : Circular Polarisation
Programme) ICAO CP : Conflict Probe (PATs)
COHO : Coherent Oscillator CP : Contact Person (Eurocontrol)
COLL : Collapse CP : Control Panel
COLOC : Change of Location of Command CP : CWP Processor Unit
COM : Cockpit Operating Manual CPA : Closest Point of Approach
COM : Communications (ICAO) CPC : Constant Pitch Climb
CoM : EUROCONTROL Committee of Management CPC : Control and Processing Centre
COM/DIV : ICAO Communications Divisional Meeting CPCs : Certified Professional Controllers
COM/MET : Communications / Meteorology Divisional CPCS : Cabin Pressure Control System
Meeting CPD : Continuous Professional Development
COM/OPS : Communications / Operations CPD : Coupled
COMALF-E : Commander of Airlift Forces - Europe CPDLC : Controller Pilot Data Link Communications
COMED : Combined Map and Electronic Display CPF : Central Processing Facility
COMG : Communications Group CPI : Californian Psychological Inventory
COMIL : Coordination Centre for Military Airspace Use CPL : Commercial Pilots License
COMIL-1N : ATS Coordination Centre for Military Airspace CPL : Current Flight Plan (message)
Utilisation - Phase 1 Network CPL : Customer Priority Listing (NOG)
COMLAN : COMmunication Local Area Network CPR : Conflict Prediction and Resolution
Comm-B : Mode S downlink format DF20 or 21 CPS : Central Print Service / Central Processing System
COMNAV : Groupe de travail sur les Télécommunications CPS : Characters Per Second
et les installations de navigation (CEAC) CPU : Central Processing Unit
COMP : Operating Company CR : Central Region
COMPAS : Computer Oriented Metering Planning and CR : Course to a VOR Radial (ARINC 424 Path
Advisory System Terminator)
COMSEC : Communications Security CR : Czech Republic
COMT : Communications Team CR(A)OC : Central Region (Air) Operations Centre
COMX : Undefined Future Communication System CRAF : Central Reservation Airspace Facility
CON : Continuous CRAF : Civil Reserve Air Fleet
CONC : Concrete CRAF : Computer Resolution Advisory Function
COND : Condition CRAFS : Civilian Request for Airspace and Flight Data
CONDAR : Conflict Detection and Resolution System
CONDOR : Confidential Direct Occurence Report CRAM : Conditional Route Availability Message
CONF : Conflict CRATF : Communications Requirements Analysis Task
CONFACP : Conflict Accept Force
CONOPS : Concept of Operations of Mode S in Europe CRC : Control and Reporting Centre
CONP : Connection Oriented Network Protocol CRC : Cyclic Redundancy Check
CONS : Continuous CRCO : Central Route Charges Office
CONST : Construction or Constructed CRD : Conflict Risk Display
CONT : Continue CRDA : Converging Runway Display Aid
Cont'd : Continued CRDS : CEATS Research & Development & Simulation
CONUS : Continental United States Centre
COO : Coordinator CRDS : Colour Raster Scan Display
COOR : Co-ordinate or coordination CREME : Creating the EATCHIP Management
COORD : Co-ordination Environment
COP : Change over Point CRF : Central Repair Facility (RMCDE - MAS)
COP : Contingency Operations Plan CRITTER Civil Rotorcraft IFR Terminal-Area Technology
COP : Co-ordination Point Enhancement Research
COPG : Common Operating Procedures Group CRM : Cockpit / Crew Resource Management
COPP : Connection Oriented Presentation Protocol CRM : Collision Risk Modelling (ICAO - ADS)
COPS : Common Operational Performance Specifications CRM : Co-ordination Revision Message
COR : Correct or Corrected or Correction CRMCS : Central RADNET Monitoring and Control System
COR : Correlate CRNA : Centre Régional de la Navigation Aérienne
CORA : Conflict Resolution Assistant (DGAC/DNA/SCTA, France)
CorC++ : Computer language CRS : Contingency Routing System
CORE : Controlled Requirements Expression CRS : Controller Route Sequence (FPPS/DECADE)
CORE : CORE Requirements for ATM Working Positions CRS : Course
COROM : Cognitive Competencies Model CRT : Choice Reaction Time
CO ROUTE Company Route (also CO RTE) CRZ : Cruise
CORUM : Training and Human Resources Consultancy CS : Callsign or Contract Signature
Company CS : Cirrostratus
COS : Chief of Staff CS : Collapsed Sector
COS : Computer Operating Station CSAC : Cooperative Structural Airspace Concept (ICAO)


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