433 abbreviations
AbbreviationMeaning
A/PAutopilot
ABASAircraft-Based Augmentation System
ACARSAircraft Communications Addressing and Reporting System
ACASAirborne Collision Avoidance System
ACCArea Control Centre
ACMSAircraft Condition Monitoring System
ACPAudio Control Panel
ACSAudio Control System
ADAHRSAir Data And Attitude Heading Reference System
ADCAir data computer
ADFAutomatic direction finder
ADIAttitude director indicator
ADIRSAir Data Inertial Reference System
ADIRUAir data inertial reference unit
ADMAir data module
ADSEither; Automatic Dependent Surveillance or air data system
ADS-AAutomatic Dependent Surveillance-Address
ADS-BAutomatic Dependent Surveillance-Broadcast
AFCSAutomatic flight control system
AFDAutopilot flight director
AFDCAutopilot flight director computer
AFDSAutopilot flight director system
AFISEither; Automatic flight information service or airborne flight information system
AGACSAutomatic ground–air communications system, is also known as ATCSS or data link
AGCAutomatic gain control
AGDLAir-Ground Data Link
AHCAttitude Heading Control
AHRSAttitude and Heading Reference Systems
AIDSAircraft Integrated Data System
AIXMAeronautical Information eXchange Model
ALCAutomatic Level Control
ALTEither; altimeter or altitude
ALT HoldAltitude Hold Mode
ALTSAltitude Select
AMLCDActive-matrix liquid crystal display
AMSAir Management System
ANCActive Noise Cancellation
ANNAnnunciator – caution warning system normally containing visual and audio alerts to the pilot
ANRActive Noise Reduction
ANTAntenna
AOCAeronautical Operational Control
AOPAirport Operating Plan
APCAuto Pilot Computer
APMAircraft Personality Module
APSAuto Pilot System
APUAuxiliary Power Unit
ARINCAeronautical Radio, Incorporated
ASDAircraft situation display
ASDLAeronautical satellite data link
ASRAirport surveillance radar