1、Abbreviations and AcronymsA 1st firstA or a amberA/B autobrakeA/C aircraftA/C air conditioningA/D analog-to-digitalA/G air/groundA/P autopilotA/S antiskidA/S airspeedA/T autothrottleAACU antiskid/autobrake control unitAAU audio accessory unitabs absoluteabv aboveAC alternating currentac alternating
2、currentACARS aircraft communication addressing and reportingACAU air conditioning accessory unitacc accumulatorACC active clearance controlaccel accelerationaccum accumulatoraccy accessoryACM air cycle machineACMP Alternating current motor pumpACMS aircraft condition monitoring systemACP audio contr
3、ol panelACQ acquireacq acquisitionACRU Avionics cooling refrigeration unitACS air conditioning systemact activeactr actuatorACU airshow control unitADC air data computerADF automatic direction finderADI attitude director indicationADIRS air data inertial reference systemadj adjustable or adjustmentA
4、DL airborne data loaderADP air driven pumpADR air data referenceADS air data systemADV advanceadv advisoryAEP audio entertainment playerAFCS automatic flight control systemAFDS automatic flight director systemAFOLTS automatic fire/overheat logic & test systemAGB angle gearbox(PW Engine)AGB accessory
5、 gearboxAGCU APU generator control unitAGL above ground levelAGS air/ground systemAI aluminumAI attitude indicatorail aileronALR alternate load reductionALRT alertalt alternatealtn alternateAM amplitude modulatedamb ambientAME amplitude modulation equivalentAMM airplane maintenance manualamp amplifi
6、erampl amplifierAMUX audio multiplexerANN annunciatorannc announcementannun annunciatorANT antennaAOA angle of airflowAOA angle of attackAOC airline operations controlAOC approach-on-courseAOG airplane on groundAPB APU breakerAPB auxiliary power breakerapl airplaneAPP approachapp approachappl applic
7、ationapprox approximate or approximatelyAPS APU power switchAPU auxillary power unitARINC Aeronautical Radio Inc.ARINC aeronautical radio incorporatedarpt airportASA autoflight status annunciatorASG APU starter-generatorASM autothrottle servo motorASP Audio selector panelassy AssemblyASU attendant s
8、ervice unitasym asymmetryATA air transport associationATC air traffic controlATE automatic test equipmentatm attitudeATR austin trumbull radioATS air traffic servicesatt attendantattd attendantattend attendantauth authorityauto automaticaux auxillaryavail Availableavg averageAVM airborne vibration m
9、onitoringB B or b Blue(light only)bal balanceBAR bleed air regulatorbaro barometricBARO barometric altitudebat batteryBAT batteryBATT batteryBAV bleed air valveBB Broad bandBB Body buttock linebc broadcastBCD Binary coded decimalbcn beaconBFE buyer fumished equipmentBGM boarding musicBIT built in te
10、stBITE bulit-in test equipmentbkr breakerBL buttock linebld bleedblk blackblk blockBLS bezel light sensorBMS Boeing material specificationBMV brake metering valvebnr bumerBOV bias out of viewBPCU bus power control unitBPI braek pressure indicatorbrg bearingbrk brakebrt bright or brightnessBS body st
11、ationBSV burner staging valveBTB bus tie breakerbtl bottleBTM brake temperature monitorBTU british thermal unitBVCU bleed valve control unitC c centerC CelsiusC/B circuit breakerC/L coefficient of liftC/O change overC/W control wheelCA cation annunciatorCAA Civil Aviation Authoritycab cabinCAI cabin
12、 altitude indicatorcanc cancelcapt captainCAS computed airspeedcat categorycau or caut cautionCB circuit breakerCBP compressor bleed pressureCCA central control actuatorCCDL cross channel data linkCCN compatibility class numberccw counterclockwiseCDP conpressor discharge pressureCDS common display s
13、ystemCDS/DEU common display system/display electronics unitCDU center drive unitCDU control display unitCEU cargo electronic unitcfm cubic feet per minuteCG center or gravitycgo cargoCH channelchan channelchap chapterchar characterchg changechgr chargerchr chronographcir clearckts circuitCL center l
14、owerclb climbclg coolingclk clockclng coolingclr clearCLS continuous level sensorclsd closedcm centimeterCMD commandCMOS complementaty metal oxide semiconductorcmptr computercntl controlcntrl controlcoax coaxialcoef coefficientcol columncom commoncomb combinationcomm communicationcomnd commandcomp c
15、ompressorcomp compensate or compensatorcompt compartmentcon continuouscond condition/conditioningconfig configurationconn connectionCONT continuouscont controlcont controllerconv conversioncorr correctioncos cosinecowl cowlingCP control panelCPC cabin pressure controllerCPCS cabin pressure control s
16、ystemCPS cycles per secondCPU central processor unitCRES corrosion resistant steelCRF compressor rear framecrit criticalcrs courseCRS courseCRT cathode ray tubecrz cruiseCSD constant speed driveCSMU crash survivable memory unitCT current transformerCTA current transformer assemblyCTAI cowl thermal a
17、nti-iceCTD column timer decoderCTM cycle time monitorctn cautionctr centerctrl controlCU computer unitCU control unitCU copperCU center uppercuat customercurr currentCW control wheelCWS control wheel steeringCWS caution & waring systemD D dayD&O temperature derated takeoffD/A digital-to-analogDAC di
18、gital to analog converterDADC digital air data computerdat datumDB databasedb decibeldblr doublerdc direct currentdcdr decoderDCTCU direct current tie control unitDCV directional control valveDDU deceleration detector unitdecel deceleratedecr decreaseded dedicateddef definitiondeg degree ( angular)d
19、em demanddemux demultiplexerden. densitydep depressurizedepress depressurizationdept departmentdes descentdest destinationdet detectordet detectordet detector/detectionDEU display electronic unitdev developdevn deviationDF direction finderDFCS digital flight control systemDFDAU digital flight data acquisition unitDFDMU digital flight data management unitDFDR digital flight data recorderdftr deflectorDH decision heightdiag diagonal or diagramdiam diameterdiaph diaphragmdiff difference or differentialdig digitaldim. dimensiondim. dimmerDIP dual inline packagedir direction
