Aircraft Systems Abbreviations and Acronyms

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航空

university of applied sciences
gegr. 1970 fachhochschule hamburg
FACHBEREICH FAHRZEUGTECHNIK
UND FLUGZEUGBAU
Aircraft Systems
Abbreviations and Acronyms
Prof. Dr.-Ing. Dieter Scholz, MSME
2 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
Prof. Dr.-Ing. Dieter Scholz, MSME
Fachhochschule Hamburg
Fachbereich Fahrzeugtechnik und Flugzeugbau
Berliner Tor 5
20099 Hamburg
Tel.: 040 - 709 716 46
Fax: 040 - 709 716 47
E-Mail: info@ProfScholz.de
WWW: www.ProfScholz.de
Aircraft Systems - Abbreviations and Acronyms 3
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
A ALPHA
a-FLOOR MAX. ANGLE OF ATTACK, STALL
A / BRK AUTOBRAKE
A / C AIRCRAFT
A / D ANALOG / DIGITAL
A / F AUTO FLIGHT
A / L AIRLINE
A / N ALPHABETICAL / NUMERICAL
A / P AUTOPILOT
A / R APPROVED / REPAIRS
A / R AUDIO REPRODUCER
A / S AIRSPEED
A / S AUTO STABILIZATION
A / SKID ANTISKID
A / T ADJUSTMENT / TEST
A / THR AUTO THROTTLE
A / THR AUTO THRUST (FUNCTION)
A / XMFR AUTO TRANSFORMER
A AMBER
A. M. ABOVE MENTIONED
A. M. ANTE MERIDIAN
AA AIRWORTHINESS AUTHORITIES
AAAH AIRBUS APPROVED ABBREVIATION HANDBOOK
AAC AIRLINE ABBREVIATION CODE
AAD AIRBUS ABBREVIATIONS DICTIONARY
AAL ABOVE AERODROME LEVEL
AAP ADDITIONAL ATTENDANT PANEL
AAP AFT ATTENDANT PANEL
AB ABORT
ABBR ABBREVIATION
ABD AIRBUS DIRECTIVES
ABM ABEAM
ABM APU BUILT-UP MANUAL
ABN ABNORMAL
ABNORM ABNORMAL
ABS ABSOLUTE
ABS AIRBUS STANDARD
ABSORB ABSORBER
ABV ABOVE
ABV ABOVE
AC ADVISORY CIRCULAR
AC AEROPLANE CHARACTERISTICS (FOR AIRPORT PLANNING)
AC ALTERNATE CURRENT
AC ANALOG COMMON
ACA AIRLINE CUSTOMIZATION ANALYSIS
ACAC AIR COOLED AIR COOLER
ACARS AIRCRAFT COMMUNICATION ADDRESSING AND REPORTING SYSTEM
ACAS AIRBORNE COLLISION AVOIDANCE SYSTEM
ACC ACCELERATION
ACC ACCESSORY
ACC ACTIVE CLEARANCE CONTROL
ACC AREA CONTROL CENTER
ACCEL ACCELERATE, ACCELERATION, ACCELEROMETER
ACCL ACCELERATION
ACCLRM ACCELEROMETER
ACCS AVIONICS COOLING CONTROL SYSTEM
ACCU ACCUMULATOR
ACE ALTIMETER CONTROL EQUIPMENT
ACFT AIRCRAFT
4 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
ACHC AFT CARGO HEAT CONTROLLER
ACIA ASYNCHRONOUS COMMUNICATION INTERFACE ADAPTER
ACID AIRCRAFT IDENTIFICATION
ACID AIRCRAFT TAIL NUMBER
ACK ACKNOWLEDGE
ACM ABBREVIATION COMPONENT MAINTENANCE MANUAL
ACM AIR CYCLE MACHINE
ACM AIRCRAFT CONVERSION MANUAL
ACM APU CONDITION MONITORING
ACMM ABBREVIATION COMPONENT MAINTENANCE MANUAL
ACMS AIRCRAFT CENTRALIZED MAINTENANCE SYSTEM
ACMS AIRCRAFT CONDITION MONITORING SYSTEM
ACN AIRCRAFT CLASSIFICATION NUMBER
ACOB AUTOMATIC CALL OUT BOX
ACOC AIR COOLED 1 OIL COOLER
ACP ALTIMETER CHECK POINT
ACP AREA CALL PANEL
ACP ATTENDANT CONTROL PANEL
ACP AUDIO CONTROL PANEL
ACQ ACQUISITION
ACQ AQUIRE
ACRT ADDITIONAL CROSS REFERENCE PANEL
ACS ACCESS
ACSC AVIONICS COOLING
ACT ACTIVE
ACT ADDITIONAL CENTER TANK
ACTD ACTUATED
ACTG ACTUATING
ACTN ACTION
ACTR ACTUATOR
ACTR AIRCRAFT SYSTEM
ACTVT ACTIVATE
ACU ALPHA CALL UP
ACU ANTENNA COUPLER UNIT
ACV ALTERNATING CURRENT VOLTAGE
ACVR ALTERNATING CURRENT VOLTAGE RATIO
ACW APU CONTROL WORD
ACYC APU START CYCLES
AD AERODROME
AD AIRCRAFT DATUM
AD AIRWORTHINESS DIRECTIVE
ADAU AUXILIARY DATA ACQUISITION UNIT
ADB AREA DISTRIBUTION BOX (AUDIO / VIDEO)
ADBR ARINC DATA BUS READER
ADC AIR DATA COMPUTER
ADC ANALOG / DIGITAL CONVERTER
ADC AUTOMATIC DRIVE CONTROL
ADD ADDITION
ADDR ADDRESS
ADF AUTOMATIC DIRECTION FINDER
ADG AIR DRIVEN GENERATOR
ADI ATTITUDE DIRECTION INDICATOR
ADI ATTITUDE DIRECTOR INDICATOR
ADIRS AIR DATA AND INERTIAL REFERENCE SYSTEM
ADIRU AIR DATA AND INERTIAL REFERENCE UNIT
ADJ ADJUST
ADJMT ADJUSTMENT
ADM AIR DATA MODULE
ADPM AIRCRAFT DEACTIVATION PROCEDURES MANUAL
Aircraft Systems - Abbreviations and Acronyms 5
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
ADPTN ADAPTION
ADPTR ADAPTER
ADR ADDRESS
ADR ADVISORY ROUTE
ADR AIR DATA REFERENCE
ADR AIRBORNE DATA LOADER
ADRES AIRCRAFT DATA RETRIEVAL SYSTEM
ADRES AIRCRAFT DOCUMENTATION RETRIEVAL SYSTEM
ADRS ADDRESS
ADS AIR DATA SYSTEM
ADS AUTOMATIC DEPENDENT SURVEILLANCE
ADU AIR DATA UNIT
ADU ALIGNMENT DISPLAY UNIT
ADV ADVISORY ADVISORY MESSAGE
AEA ASSOCIATION OL EUROPEAN AIRLINES
AEB AIRLINE ENGINEERING BULLETIN
AECMA ASSOCIATION EUROPE'EN DES CONSTRUCTEURS DE MATERIAL AEROSPATIAL
AEEC AIRLINE ENGINEERING ELECTRONICS COMMITTEE
AEMS AIRCRAFT ELECTRONIC MANAGEMENT SYSTEM
AERO AVIATION ROUTINE WEATHER REPORT
AEVC AVIONICS EQUIPMENT VENTILATION COMPUTER
AEX ACCESS AUTHORIZED
AF ALL FREIGHTER
AF AUDIO FREQUENCY
AF AUTOMATIC FREQUENCY CONTROL
AF DME ARC TO FIXED WAYPOINT
AFB ANTIFRICTION BEARING
AFC AUTOMATIC FLIGHT CONTROL SYSTEM
AFCS AUTOMATIC FLIGHT CONTROL SYSTEM
AFE ANALOG-DIGITAL FRONT END
AFR AIRFRAME
AFRP ARAMID FIBER REINFORCED PLASTIC
AFS AIR FUEL SEPARATOR
AFS AUTOMATIC FLIGHT SYSTEM
AFT AFTWARDS
AFTN AERONAUTICAL FIXED TELECOMMUNICATION NETWORK
AGB ACCESSORY GEAR BOX
AGB APU GENERATOR CONTACTOR
AGB AUXILIARY GENERATOR CONTACTOR
AGC AUTOMATIC GAIN CONTROL
AGCM AIRCRAFT GROUND CHECK MODULE
AGE AIRCRAFT GROUND EQUIPMENT
AGL ABOVE GROUND LEVEL
AGLC APU GENERATOR LINE CONTACTOR
AGMT AUGMENT
AGW ACTUAL GROSS WEIGHT
AH AMPERE HOUR
AHM APU HEALTH MONITORING
AHMS APU HEALTH MONITORING SYSTEM
AHRS APU OPERATING HOURS
AHRS ATTITUDE AND HEADING REFERENCE SYSTEM
AHRU ATTITUDE AND HEADING REFERENCE UNIT
AI AIRBUS INDUSTRY
AIA AEROSPACE INDUSTRIES ASSOCIATION
AIB ATTENDANT INFORMATION BULLETIN
AIC ACCESS ILLUSTRATION CARDS
AICC AVIONICS INDUSTRIES COMPUTER COMMITTEE
AID AIRCRAFT INSTALLATION DELAY
AIDS AIRCRAFT INTEGRATED DATA SYSTEM
AIG ACCIDENT INVESTIGATION
6 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
AIL AILERON
AIL AIRBUS INFORMATION LETTER
AIM AIRCRAFT INTEGRATED MAINTENANCE
AIMS AIRBUS INVENTORY MANAGEMENT SYSTEM
AIMS AIRCRAFT INTEGRATED MANAGEMENT SYSTEM
AIMS AIRPLANE INFORMATION MANAGEMENT SYSTEM
AIP AIRBUS INDUSTRIES PUBLICATION
AIP ATTENDANT INDICATION PANEL
AIP ATTENDANT INDICATION PANEL
AIP ATTITUDE INDICATOR PANEL
AIRCOND AIR CONDITIONING
AIS AERONAUTICAL INFORMATION SERVICE
AIS AIR INFORMATION SERVICE
AIS AMERICAN IRON AND STEEL INSTITUTE
AIS ANTI ICE SENSOR
AIT AUTOMATIC INTEGRITY TEST
AIU AUDIO INTERFACE UNIT
AIV ANTI-ICE VALVE
ALC ALREADY CONNECT
ALC AUTOMATIC LOAD CONTROL
ALERFA ALERT PHASE
ALF AFT LOOKING FORWARD
ALHP AIRCRAFT LIFE HISTORY PROGRAM
ALI AIRCRAFT LOADABILITY INTERFACE
ALI ALIGNMENT
ALIGN ALIONMENT
ALIM ALIMENTATION (SUPPLY)
ALPH AIRFRAME USE HISTORY PROGRAM
ALPHA ALPHABETICAL
ALPHA ANGLE-OF-ATTACK
ALS APPROACH LIGHT SYSTEM
ALT ALTITUDE
ALT ENGINE ALTERNATOR ROTOR
ALT ENGINE ALTERNATOR STATOR
ALTI ALTIMETER
ALTM ALTIMETER
ALTN ALTERNATE
ALTPN ALTERNATE PART NUMBER
ALTR ALTITUDE RATE
ALTU ANNUNCIATOR LIGHT TEST UNIT
ALU ARITHMETIC AND LOGIC UNIT
AM AMPLITUDE MODULATION
AMAGAS AIRCRAFT MALFUNCTION AND GROUND ACTION SYSTEM
AMB AMBIENT
AMC ACCEPTABLE MEANS OF COMPLIANCE
AMC AERODYNAMIC MEAN CHORD
AMM AIRCRAFT MAINTENANCE MANUAL
AMM AMMETER
AMP AIRLINE MAINTENANCE PROCEDURE
AMP AMPERAGE
AMP AMPERE
AMP AMPLIFIER
AMPL AMPLIFIER
AMS AERONAUTICAL MATERIAL SPECIFICATION
AMS AEROSPACE MATERIAL SPECIFICATION
AMS AIRCRAFT MALFUNCTION SYSTEM
AMS AIRCRAFT MODIFICATION STATUS
AMTOSS AIRCRAFT MAINTENANCE TASK ORIENTED SUPPORT SYSTEM
AMU AUDIO MANAGEMENT UNIT
Aircraft Systems - Abbreviations and Acronyms 7
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
AMV AIR MODULATING VALVE
AN ALPHABETICAL / NUMERICAL
AN AIR NAVIGATION
AND AIRCRAFT NOSE DOWN
ANI ANALOG INPUT
ANN LT ANNUNCIATOR LIGHT
ANN ANNUNCIATOR
ANNCMT ANNOUNCEMENT
ANNU ANNUNCIATOR
ANO ANALOG OUTPUT
ANPT AERONAUTICAL NATIONAL TAPER PIPE THREADS
ANS AMERICAN NATIONAL STANDARD
ANS AMERICAN NATIONAL STANDARD INSTITUTE
ANS AREA NAVIGATION SYSTEM
ANT AIRCRAFT NOSE UP
ANT ANTENNA
AOA ANGLE OF ATTACK SENSOR
AOA ANGLE OF ATTACK
AOB ANGLE OF BANK
AOC APPROACH ON COURSE
AOG AIRCRAFT ON GROUND
AOL ALL OPERATORS LETTER
AOM AIRCRAFT OPERATING MANUAL
AOT AIRCRAFT OPERATION TEST
AOW ALL OPERATORS WIRE
AP / FD AUTO PILOT / FLIGHT DIRECTOR
AP AUTOPILOT
AP AIRBORNE PRINTER
AP AROMATIC POLYAMIDE (KAPTON
TM
)
APC AIRCRAFT POSITIVE CONTROL
APD APPROACH PROGRESS DISPLAY
APEX ADVANCED PROJECT FOR EUROPEAN EXCHANGE
APIC AUXILIARY POWER INTERNATIONAL CORPORATION: SUNSTRAND (USA) & TURBOMECA (FRANCE)
APL AIRPLANE
APM AIRCRAFT PERFORMANCE MONITORING
APM AIRPORT PLANNING MANUAL
APP APPEARANCE
APP APPROACH
APPR APPROACH
APPROX APPROXIMATELY
APPU ASYMMETRY POSITION PICK OFF UNIT
APS AIRCRAFT PREPARED FOR SERVICE
APS AUXILIARY POWER SUPPLY
APS AUXILIARY POWER SYSTEM
APU AUXILIARY POWER UNIT
APURDY APU READY
AR AS REQUIRED
ARALL ARAMID REINFORCED ALUMINUM LAMINATE
ARCCS AUTOMATIC ROTOR CLEARANCE CONTROL SYSTEM
ARG ARRESTING GEAR
ARGA ARINC RECEIVER GATE ARRAY
ARINC AERONAUTICAL RADIO INCORPORATED (SPECIFICATION), AMERICAN RADIO INCORPORATION
ARLL ARAMIDE ALUMINUM LAMINATE
ARM AIRCRAFT RECOVERY MANUAL
ARM ARMED
ARMD ARMED
ARMG ARMING
ARMT ARMAMENT
ARND AROUND
ARO AFTER RECEIPT ORDER
8 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
ARP AERODROME REFERENCE POINT
ARP AERONAUTICAL RECOMMENDED PRACTICES
ARPT AIRPORT
ARR ARRIVAL
ART ACTIVE REPAIR TIME
ART ARTIFICIAL
ARTCC AIR ROUTE TRAFFIC CONTROL CENTER
ARTF ARTIFICIAL
AS ACCOMPLISHMENT SUMMARY
AS AEROSPACE STANDARD
AS AEROSPATIALE
AS AIRSCOOP
AS AIRSPEED
AS AUTO STABILIZATION
ASA AIRBORNE SEPARATION ASSURANCE
ASA ALL SPEED AILERON
ASAP AS SOON AS POSSIBLE
ASCII AMERICAN STANDARD CODE OF INFORMATION INTERCHANGE
ASD ACCELERATE STOP DISTANCE
ASD AIRLINE SERVICE DATA COLLECTION
ASD AUTO SHUT DOWN
ASE AIRBORNE SUPPORT EQUIPMENT
ASE AMPERES PER SQUARE FOOT
ASI AIRSPEED INDICATOR
ASIC APPLICATION SPECIFIC INTEGRATED CIRCUIT
ASM AIRCRAFT SCHEMATICS MANUAL
ASM AIRLINE SPECIFIC MANUAL
ASM AMERICAN SOCIETY FOR METALS
ASN AEROSPATIALE NORM
ASN APU SERIAL NUMBER
ASP AUDIO SELECTOR PANEL
ASPSU AUTONOMOUS STANDBY POWER SUPPLY UNIT
ASR AIRPORT SURVEILLANCE RADAR
ASSY ASSEMBLY
ASYM ASYMMETRIC
ASYM ASYMMETRICAL
AT ADJUSTMENT / TEST
AT AUTO THROTTLE, AUTO THRUST
ATA AIR TRANSPORT ASSOCIATION OF AMERICA
ATARF ATA - REFERENCE
ATB ATA-BREAKDOWN
ATC AIR TRAFFIC CONTROL
ATC APPROVED TYPE CERTIFICATE
ATCB AIR TRAFFIC CONTROL BOARD
ATCE AIRLINE TEST CELL EQUIPMENT MANUAL
ATCH ATTACH
ATCK ATTACK
ATCRB AIR TRAFFIC CONTROL RADAR BEACON
ATCRBS AIR TRAFFIC CONTROL RADAR BEACON SYSTEM
ATCSS AIR TRAFFIC CONTROL DATA LINK SIGNALING SYSTEM
ATE AUTOMATIC TEST EQUIPMENT
ATEC AUTOMATIC TEST EQUIPMENT COMPLEX
ATF ACTIVITY TEST FAILURE
ATG AIRBUS TERMINOLOGY GLOSSARY
ATH AUTO THROTTLE
ATHR AUTO THRUST
ATI AIR TRANSPORT INDICATOR
ATIS AIR TRAFFIC INFORMATION SYSTEM
ATLAS ABBREVIATED TEST LANGUAGE FOR ALL SYSTEMS
Aircraft Systems - Abbreviations and Acronyms 9
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
ATM AIR TURBINE MOTOR
ATM AIRCRAFT TRANSPORTABILITY MANUAL
ATM AVAILABLE TON-MILE
ATMS ADVANCED TEXT MANAGEMENT SYSTEM
ATN AERONAUTICAL TELECOMMUNICATION NETWORK
ATO ABORTED TAKE OFF
ATP ACCEPTANCE TEST PROCEDURE
ATPL AIR TRANSPORT PILOTS LICENSE
ATRIM AUTO TRIM
ATS ADMINISTRATIVE TERMINAL SYSTEM
ATS AIR TRAFFIC SECTOR
ATS AIRBUS TECHNICAL SPECIFICATION
ATS AUTO THROTTLE SYSTEM
ATS AUTO THRUST SYSTEM
ATSU AIR TRAFFIC SERVICE UNIT
ATT ATTITUDE
ATTEN ATTENUATION
ATTN ATTENTION
ATTND ATTENDANT
ATZ AERODROME TRAFFIC ZONE
AUD AUDIO
AUTH AUTHORIZE
AUTO AUTOMATIC
AUTOCAL AUTO CALIBRATION
AUTOLAND AUTOMATIC LANDING
AUW ALL-UP WEIGHT
AUX AUXILIARY
AVAIL AVAILABLE
AVG AVERAGE
AVIOLAN AVIONICS LOCAL AREA NETWORK
AVIONICS AVIATION ELECTRONICS
AVL AUTOMATIC VOLUME CONTROL
AVLAN AVIONICS LOCAL AREA NETWORK
AVNCS AVIONICS
AVOD AUDIO-VIDEO ON DEMAND
AVOR AIRWAY-VOR
AVRS AUDIO / VIDEO RECORDING SYSTEM
AWB AIRWAY BILL
AWB AUDIO WARNING BOX
AWG AMERICAN WIRE GAGE
AWG AUDIBLE WARNING GENERATOR
AWL AIRCRAFT WIRING LIST
AWLS ALL WEATHER LANDING SYSTEM
AWM AIRCRAFT WIRING MANUAL
AWS AMERICAN WELDING SOCIETY
AWY AIRWAY
AX ACCESS AUTHORIZED
AX LONGITUDINAL ACCELERATION
AY LATERAL ACCELERATION
AZ AZIMUTH
AZ VERTICAL ACCELERATION
AZFW ACTUAL ZERO FUEL WEIGHT
B BRAVO
B / A BANK ANGLE
B / B BACK BEAM
B / C BAGGAGE CONTAINER
B / C BUSINESS CLASS
B / D BOTTOM OF DESCENT
10 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
B BLUE
B BOTTOM
BAABI BASIC APPROVED ATA BREAKDOWN INDEX
BAE BRITISH AEROSPACE
BAF BAFFLE
BAFO BEST AND FINAL OFFER
BAL BASIC ASSEMBLY LANGUAGE
BAMC BLEED AIR MONITORING COMPUTER
BARC BAROMETRIC ALTITUDE RATE COMPUTER
BARO BAROMETRIC
BARP BAROMETRIC PRESSURE
BAT BATTERY
BBRG BALL BEARING
BCAS BEACON COLLISION AVOIDANCE SYSTEM
BCD BINARY CODED DECIMAL
BCD BINARY CODED DECIMAL DATA WORD
BCDS BITE CENTRALIZED DATA SYSTEM
BCEPC BALANCE CONTROL ENVELOPE PROTECTION COMPUTER
BCEPS BALANCE CONTROL ENVELOPE PROTECTION SYSTEM
BCL BATTERY CHARGE LIMITER
BCN BEACON
BCU BRAKE CONTROL UNIT
BCV BLEED CONTROL VALVE
BDD BITE DESCRIPTION DOCUMENT
BDDV BRAKE DUAL DISTRIBUTER VALVE
BDLI BUNDESVERBAND DER DEUTSCHEN LUFT- UND RAUMFAHRT -INDUSTRIE
BDY BOUNDARY
BEL CRK BELL CRANK
BEL BEIL
BER BEYOND ECONOMICAL REPAIR
BETW BETWEEN
BEV BEVEL
BEW BASIC EMPTY WEIGHT
BF BROUGHT FORWARD
BFDAS BASIC FLIGHT DATA ACQUISITION SYSTEM
BFE BUYER FURNISHED EQUIPMENT
BFO BEAT FREQUENCY OSCILLATOR
BFR BUFFER
BG BUILT GROUP
BG BUILT GROUP COMPONENT
BGM BOARDING GENERAL MUSIC (BOARDING MUSIC)
BGS BUILT GROUP STACK-UP
BHD BULKHEAD
BIST BUILT IN SELF TEST
BIT BINARY DIGIT
BIT BUILT IN TEST
BITE BUILT IN TEST EQUIPMENT
BIU BITE INTERFACE UNIT
BK BLACK
BK BRAKE
BL BLEED
BLC BATTERY LINE CONTACTOR
BLK BLACK
BLKT BLANKET
BLOW BLOWER
BLST BALLAST
BLST BLEED STATUS
BLT BOLT
BLV BLEED LOAD VALVE (BLEED VALVE)
Aircraft Systems - Abbreviations and Acronyms 11
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
BM BEAM
BM BUILT-UP MANUAL
BMC BLEED AIR MONITORING COMPUTER
BND BONDED
BNDG BONDING
BNDRY BOUNDARY
BNR BINARY DATA WORD
BO BLOCKING OSCILLATOR
BO BODY ODEUR
BOG BOGIE
BOT BEGIN OF TAPE
BOW BREAK OFF WEIGHT
BPS BITS PER SECOND
BPV BYPASS VALVE
BR BROWN
BRC BRACE
BRD BRAID
BRDG BRIDGE
BRG BEARING
BRK BRAKE
BRKNG BRAKING
BRKR BREAKER
BRKS BRAKES
BRKT BRACKET
BRT BRIGHT, BRIGHTNESS
BS BACKSPACE
BS BRITISH STANDARD
BS BURNER STAGING
BSBV BOOSTER STAGE BLEED VALVE
BSCU BRAKING AND STEERING CONTROL UNIT
BSHG BUSHING
BSI BORESCOPE INSPECTION
BSI BRITISH STANDARDS INSTITUTE
BSV BURNER STAGING VALVE (CFM ENGINE)
BT BUS TIE
BTC BUS TIE CONTACTOR
BTL BOTTLE
BTMU BRAKE TEMPERATURE MONITORING UNIT
BTN BUTTON
BTR BUS TIE RELAY
BTS BLEED TEMPERATURE SENSOR
BTU BUS TERMINATION UNIT
BU BALLAST UNIT
BU BATTERY UNIT
BUS BUS BAR
BW BEAM WIDTH
BYP BYPASS
C CHARLY
C / A CABIN ATTENDANT
C / A COARSE ACQUISITION
C / G CENTER OF GRAVITY
C / L CENTERLINE
C / L CHECKLIST
C / M COMMAND / MONITOR
C / O CARE OFF
C / O CHANGEOVER
C / O CUT OFF
C / P CLEANING PAINTING
12 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
C / S CALL SIGN
C / S CYCLES PER SECOND
C / SSR COST / SCHEDULE STATUS REPORT
C CHIME
C CLEAR
C CLOSE
C COLD
C COMMON
C COMPARATOR
C CONFIGURATION
C CONVERTIBLE
C CYAN (BLUE)
C FAULT CLASSIFICATION
CA CABIN ADDRESS
CA CABIN ATTENDANT OPERATION MANUAL
CA CABLE
CAA CHROMIC ACID ANODIZING
CAA CIVIL AVIATION AUTHORITIES (GB)
CAATS COMPUTER ASSISTED AIRCRAFT TROUBLE SHOOTING SYSTEM (ON CD ROM)
CAB PRESS CABIN PRESSURE, CABIN PRESSURIZATION
CAB CABIN
CABLAN CABIN LOCAL AREA NETWORK
CAD COMPUTER AIDED DESIGN
CADABAS CIVIL AIRCRAFT DATA BASE SYSTEM
CADAM COMPUTER AUGMENTED DESIGN AND MANUFACTURING
CADC CENTRAL AIR DATA COMPUTER
CADENSICON CAPACITIVE DENSITY CONDENSATOR
CADETS COMPUTER ASSISTED DOCUMENTATION TUTORIAL SYSTEM
CADRA COMPUTER AIDED DRAFTING
CADV CONTROLE AUTOMATIQUE DU VOT (= AFS)
CAI COMBUSTION AREA INSPECTION
CAL CALIBRATION
CAL COCKPIT AMPLIFIER LOUDSPEAKER
CAL COCKPIT AUDIO LOUDSPEAKER
CALC CARGO ACCEPTANCE AND LOAD CONTROL
CAM CABIN ASSIGNMENT MODULE
CAM COMPUTER AIDED MAINTENANCE
CAM COMPUTER AIDED MANUFACTURING
CAM CUSTOMER ACCEPTANCE MANUAL
CAMSOS COMMERCIAL AIRCRAFT MODULAR SIEVE OXYGEN SYSTEM
CAN CANCEL
CAN CANCELLATION
CAN CANOPY
CAN COMMAND ANALOG
CANC CANCEL
CAO CARGO AIRCRAFT ONLY
CAOA CORRECTED ANGLE OF ATTACK
CAOM CABIN ATTENDANT OPERATING MANUAL
CAP CAPACITOR
CAP CAPTURE
CAP COMPUTER AIDED PUBLISHING
CAPLTY CAPABILITY
CAPT CAPTAIN
CAR CARGO
CAR CONTINUING AIRFRAME REVIEW PROGRAM
CARB CARPET
CAS CALIBRATED AIR SPEED, COMPUTED AIR SPEED, CORRECTED AIRSPEED, CALCULATED AIR SPEED
CAS COLLISION AVOIDANCE SYSTEM
CAS COLUMN ADDRESS STROBE
Aircraft Systems - Abbreviations and Acronyms 13
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
CAT CATEGORY (OF WEATHER FOR LANDING)
CAT CLEAR AIR TURBULENCE
CATH CATEGORY
CATIA COMPUTER AIDED THREE DIMENSIONAL INTERACTIVE
CATIS COMPUTER AIDED TECHNICAL ILLUSTRATION SYSTEM
CAUT LT CAUTION LIGHT
CAUT CAUTION
CB CIRCUIT BREAKER
CB CONVEYOR BELT
CBAL COUNTERBALANCE
CBMS CIRCUIT BREAKER MONITORING SYSTEM
CBMU CIRCUIT BREAKER MONITORING UNIT
CBO CYCLES BETWEEN OVERHAUL
CBORE COUNTER BORE
CBP (HP) COMPRESSOR BLEED PRESSURE
CBSV CYCLES BETWEEN SCHEDULED VISITS
CBSV CYCLES BETWEEN SHOP VISITS
CBT COMPUTER BASED TRAINING
CC CARGO COMPARTMENT
CC CLUB CLASS
CC COMMUNICATION COMPUTER
CC COMPASS COUPLER
CC CONFIDENCE CHECK
CCC CHEMICAL CONVERSION COATING
CCC COMPONENTS CHANGE CARDS
CCC CRASH CREW CART
CCC CRASH CREW CHART
CCDL CROSS CHANNEL DATA LINK
CCG CABIN CONFIGURATION GUIDE
CCIR COMITÉ CONSULTATIF INTERNATIONAL DES RADIO
CCITT COMITÉ CONSULTATIF DE TÉLÉGRAPHIE ET TÉLÉHONIQUE
CCITT CONSULTATIV COMMITEE ON INTEMATIONAL TELEPHONE AND TELEGRAPHY
CCL CIDS CAUTION LIGHT
CCQ CROSS CREW QUALIFICATION
CCRC CENTER CREW REST COMPARTMENT
CCS CABIN COMMUNICATION SYSTEM
CCS CENTRALIZED CABIN STATION
CCSW CONFIDENCE CHECK SWITCH
CCW COUNTER CLOCK WISE
CD COLD DRAWN
CD COMPACT DISC
CD CONTAINER DOLLY
CD CONTROL DISPLAY
CD CONTROL DRAG
CDE CONSUMPTION DATA EXCHANGE CARD
CDG COMMAND DIGITAL
CDIM COMPONENT DATA INSTRUCTION MANUAL
CDL CONFIGURATION DEVIATION LIST
CDP COMPRESSOR DISCHARGE PRESSURE (HP)
CDP COMPRESSOR DISCHARGE PRESSURE (HP)
CDR CHIP DATA READY
CDR CRITICAL DESIGN REVIEW
CDS COLD DRAWN STEEL
CDS COMPONENT DOCUMENTATION STATUS
CDS COMPRESSOR DISCHARGE SENSOR
CDT COMPRESSOR DISCHARGE TEMPERATURE
CDU CONTROL AND DISPLAY UNIT
CDX CONTROL DIFFERENTIAL TRANSFORMER
CECAM CENTRALIZED CABIN MONITORING
CED COOLING EFFECT DETECTOR
14 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
CEL COMPONENT EVOLUTION LIST
CEV CLUTCH ELECTRO VALVE
CF CARRIED FORWARD
CF COURSE TO A FIXED WAYPOINT
CFDIU CENTRALIZED FAULT DISPLAY INTERFACE UNIT, CENTRALIZED FAULT DATA INTERFACE UNIT
CFDS CENTRALIZED FAULT AND DISPLAY SYSTEM, CENTRALIZED FAULT DATA SYSTEM
CFE CUSTOM FURNISHED EQUIPMENT
CFIT CONTROLLED FLIGHT INTO TERRAIN
CFLB CARGO FLOOR BEAM
CFM CABLE FABRICATION MANUAL
CFM COMMERCIAL FAN MOTEUR: GENERAL ELECTRIC COMMERCIAL FANS (CF) & SNECMA MOTEURS (M)
CFMI COMMERCIAL FAN MOTEUR INTERNATIONAL: GENERAL ELECTRIC & SNECMA
CFMLR CAM FOLLOWER
CFN CUSTOMERS FLEET NUMBER
CFP COMPUTERIZED FLIGHT PLAN
CFR CODE OF FEDERAL REGULATIONS
CFRP CARBON FIBER REINFORCED PLASTIC
CFS COLD FINISHED STEEL
CG CENTER OF GRAVITY
CGCC CENTER OF GRAVITY CONTROL COMPUTER
CGCS CENTER OF GRAVITY CONTROL SYSTEM
CGFCC CENTER OF GRAVITY AND FUEL CONTROL COMPUTER
CGM COMPUTER GRAPHICS METAFILE
CH CENTER HAT RACK
CH CHAPTER
CH CHARGE
CHAN CHANNEL
CHAS CHASSIS
CHATV CHANNEL ACTIVE
CHC CARGO HEAT CONTROLLER
CHC CONTROL HEATING CARGO COMPARTMENT
CHG CHANGE
CHG-OV CHANGEOVER
CHK CHECK
CHM CHIME
CHMBR CHAMBER
CHNG CHANGE
CHRO CHRONOMETER
CHTAV CARGO HEAT TRIM AIR VALVE
CI CAST IRON
CI CONVERSION INSTRUCTION
CI CORROSION INHIBITOR
CI COST IMROVEMENT
CI COURSE INDICATOR
CI COURSE TO AN INTERCEPT
CIC CAPACITANCE INDEX COMPENSATOR
CICS CUSTOMER INFORMATION CONTROL SYSTEM
CID CERTIFICATION INDEX DOCUMENT
CIDS CABIN INTERCOMMUNICATION DATA SYSTEM
CIM CONTINUOUS IMAGE MICROFILM
CIP (HP) COMPRESSOR INLET PRESSURE
CIS COMPRESSOR INLET SENSOR
CIT (HP) COMPRESSOR INLET TEMPERATURE
CK CHECK
CKD CHECKED
CKPT COCKPIT
CKT CIRCUIT
CL CENTERLINE
CL CHECK LIST
Aircraft Systems - Abbreviations and Acronyms 15
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
CL CLIMB
CL CLIP
CL CLOUD
CL CLUTCH
CLB CLIMB
CLD CLOSED
CLG CEILING
CLG CENTER LINE LANDING GEAR
CLK CLOCK
CLM COMPONENT LOCATION MANUAL
CLOG CLOGGED
CLP CLAMP
CLP CONTROL LAW PROCESSOR
CLPR CLAPPER
CLR ALT CLEARANCE ALTITUDE
CLR CLEAR
CLRD CLEARED
CLS CARGO LOADING SYSTEM
CLSD CLOSED
CLSG CLOSING
CLTM COMPONENT LOCATION TRAINING MANUAL
CLU CHARGE LIMITER UNIT
CLV CLEVIS
CM CALL MAINTENANCE
CM COLLECTIVE MODIFICATION
CM CONVERSION MANUAL
CM CREW MEMBER
CMC CENTRAL MAINTENANCE COMPUTER
CMD COMMAND
CML CONSUMABLE MATERIAL LIST
CMM CALIBRATION MEMORY MODULE (WBS)
CMM COMPONENTS MAINTENANCE MANUAL
CMOS COMPLEMENTARY METAL OXIDE SEMICONDUCTOR
CMP CUSTOMER MAINTENANCE PROGRAM
CMPLRY COMPLEMENTARY
CMPNT COMPONENT
CMPRD COMPRESSED
CMPS COMPASS
CMPT COMPARTMENT
CMPTD COMPUTED
CMPTG COMPUTING
CMPTR COMPUTER
CMR CERTIFICATION MAINTENANCE REQUIREMENTS
CMRLR CAM ROLLER
CMS CABIN MANAGEMENT SYSTEM
CMS CODE MATERIAL SOCIETY
CMS COMPONENT MAINTENANCE SHEET
CMU COMMUNICATION MANAGEMENT UNIT
CNA COMMON NOZZLE ASSEMBLY
CNCTD CONNECTED
CNCTN CONNECTION
CNCTR CONNECTOR
CNCTRC CONCENTRIC
CNCV CONCAVE
CND CONDUIT
CND SECOND
CNS CIVIL NAVIGATION SYSTEM
CNS COMMUNICATION & NAVIGATION SYSTEM
CNT COUNT
CNTL CONTROL
16 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
CNTNR CONTAINER
CNTOR CONTACTOR
CNTR COUNTER
CO RTE COMPANY ROUTE
CO RTE COMPANY ROUTE
CO COLOR
CO COMPANY
CO CUT OFF
COC CARE OF CREW
COC CUSTOMER ORIGINATED CHANGES
COD COMPONENTS OPERATING AND STORAGE DATA
CODEP HIGH TEMPERATURE COATING
COHO COHERENT OSCILLATOR
COL COLUMN
COLAN COCKPIT LOCAL AREA NETWORK
COM PASS CONDITION MONITORING & ANALYSIS SOFTWARE SYSTEM (IEA ENG)
COM UNIT COMMAND UNIT
COM COMMAND
COM COMMON
COM COMMUNICATION
COMD COMMAND
COMP COMPASS
COMP COMPENSATOR
COMP COMPRESSED
COMPT TEMP COMPARTMENT TEMPERATURE
COMPT COMPARTMENT
COMPTR COMPARATOR
COMPUT COMPUTER
COMTN COMMUTATION
COND CONDITIONING
CONDTN CONDITION
CONDTR CONDITIONER
CONF CONFERENCE
CONF CONFIGURATION
CONFIG CONFIGURATION
CONT CONTAMINATION
CONT CONTINUE, CONTINUOUS
CONT CONTOUR
CONT CONTROL, CONTROLLER
CONTR CONTROL
CONV CONVERTER
COOL COOLER, COOLING
COORD COORDINATE
COPI COPILOT
CORCTD CORRECTED
CORR CORRECT
CORR CORRUGATE
CORR CORRUGATION
COS COMPRESSOR OUTLET SENSOR
COSL COMPONENT OPERATING STORAGE LIMITS
COT COMPRESSOR OUTLET TEMPERATURE (PACK)
COT COTTER
COV COVER
COWL COWLING
CP CENTER OF PRESSURE
CP CENTRAL PROCESSOR
CP CONTROL PANEL
CPA CLOSEST POINT OF APPROACH
CPC CABIN PRESSURE CONTROLLER
Aircraft Systems - Abbreviations and Acronyms 17
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
CPCP CORROSION PREVENTION AND CONTROL PROGRAM
CPCS CABIN PRESSURE CONTROL SYSTEM
CPCU CABIN PRESSURE CONTROL UNIT
CPIP CONTINUOUS PRODUCT IMPROVEMENT PACKAGE
CPIP CONTINUOUS PRODUCTION IMPROVEMENT PROGRAM
CPL CONTROL PANEL
CPL COUPLE
CPLD COUPLED
CPLG COUPLING
CPLR COUPLER
CPM CONSUMABLE PRODUCTS MANUAL
CPMS CABIN PASSENGER MANAGEMENT SYSTEM
CPMS CABIN PASSENGER MANAGEMENT SYSTEM UNIT
CPNOH COMPRESSOR PNEUMATIC OVERHEAT SENSOR
CPRSR COMPRESSOR
CPS COMMAND POWER SUPPLY
CPS CYCLES PER SECOND
CPT CAPTAIN
CPT CAPTURE
CPT COCKPIT
CPTR COMPUTER
CPU CENTRAL PROCESSING UNIT
CPU COMMAND PROCESSOR UNIT
CR CARRIAGE RETURN
CR COLD ROLLED
CR CRUISE
CR8 COLD ROLLED STEEL
CRC CAMERA READY COPY
CRC CONTINUOUS REPETITIVE CHIME
CRC CREW REST COMPARTMENT
CRC CYCLIC REDUNDANCY CHECK
CRE CORROSION RESISTANT
CRES CORROSION RESISTANT STEEL
CRF CIRCUIT FAULT
CRG CARGO
CRL COLLAR
CRS COST REPERCUSSION SHEET
CRS COURSE
CRSN CORROSION
CRT CATHODE RAY TUBE
CRT CROSS REFERENCE TABLE
CRU CARD READER UNIT
CRZ CRUISE
CS CALL SWITCH
CS CENTER SPAR
CS CERTIFICATION STANDARD
CSCU CARGO SMOKE CONTROL UNIT
CSD CONSTANT SPEED DRIVE
CSD CONTROL SYNCHRO DIFFERENTIAL
CSDB COMMON SOURCE DATA BASE
CSE COURSE SET ERROR
CSG CONSTANT SPEED GENERATOR
CSI CYCLES SINCE INSTALLATION
CSK COUNTERSINK
CSK COUNTERSINK HEAD
CSL CONSOLE
CSM COMPUTER SOFTWARE MANUAL
CSM CONSTANT SPEED MOTOR
CSM/G CONSTANT SPEED MOTOR / GENERATOR
CSN CATALOG SEQUENCE NUMBER, CHAPTER SEQUENCE NUMBER
18 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
CSN CYCLES SINCE NEW
CSO CYCLES SINCE OVERHAUL
CSP COMMAND SLAVE PROCESSOR
CSTG CASTING
CSTR CONSTRAINT
CSU COMMAND SENSOR UNIT
CSU CONTROL SENSOR UNIT
CSV CYCLES SINCE LAST SHOP VISIT
CT CATERING TRUCK
CT CENTER TAP
CT CONTROL THERMOSTAT
CT CONTROL TRANSFORMER
CT CURRENT TRANSFORMER
CTA CONTROL AREA
CTC CABIN TEMPERATURE CONTROLLER
CTC CABIN TEMPERATURE CONTROLLER
CTF CENTRAL TEST FACILITY
CTK CAPACITY TON-KILOMETER
CTL PNL CONTROL PANEL
CTL CENTRAL
CTL CONTROL
CTLD CONTROLLED
CTLG CENTER LANDING GEAR
CTLR CONTROLLER
CTR TK XFR VLV CENTER TANK TRANSFER VALVE
CTR XFR VLV CENTER TRANSFER VALVE
CTR CENTER
CTR CONTOUR
CTR CONTROL ZONE
CTRD CENTERED
CTS CLEAR TO SEND
CTS CONTROL TEMPERATURE SENSOR
CTSK COUNTER SUNK
CTWT COUNTER WEIGHT
CU CONTROL UNIT
CUDU CURRENT UNBALANCE DETECTOR UNIT
CUR CURRENCY
CUR CURRENT
CVC CARGO VENTILATION CONTROLLER
CVD CONTROL VALVE DETENT
CVR COCKPIT VOICE RECORDER
CW CLOCK WISE
CW CONTINUOUS WAVE
CW CONTROL WHEEL
CWG COCKPIT WORKING GROUP
CWS CENTRAL WARNING SYSTEM
CWS CONTROL WHEEL STEERING
CX CONTROL TRANSMITTER
CY CALENDAR YEAR
CY CURRENT YEAR
CYAN BLUE
CYL CYLINDER
D DELTA
D & C DELAYS AND CANCELLATIONS
D / A DIGITAL TO ANALOG
D / N DATA BASE NUMBER
D / O DESCRIPTION AND OPERATION
D / R DEACTIVATION / REACTIVATION
Aircraft Systems - Abbreviations and Acronyms 19
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
D DELETED
D DEMAND
D DIODE
D. A. H. DOWTY AEROSPACE HYDRAULICS
DA DAIMLERCHRYSLER AEROSPACE AIRBUS
DA DRIFT ANGLE
DABS DISCRETE ADDRESS BEACON SYSTEM (ATC MODE 5)
DAC DESIGN APERTURE CARDS
DAC DIGITAL TO ANALOG CONVERTER
DAC DRAWING APERTURE CARD
DADC DIGITAL AIR DATA COMPUTER
DADS DIGITAL AIR DATA SYSTEM
DAF DAMPING ALLEVIATION FUNCTION
DAM DATA ACQUISITION MODULE
DAMP DAMPER
DAMV DOUBLE ANNULAR MODULATING VALVE
DAN DEUTSCHE AIRBUS NORM
DAR DIGITAL ACMS RECORDER
DAR DIGITAL AIDS RECORDER
DASA DEUTSCHE AEROSPACE
DATAC DIGITAL AURONOMOUS TERMINAL ACCESS COMMUNICATION (ARINC629)
DB DATA BIT
DB DATABASE
DBLR DOUBLER
DC DEVICE CONTROL
DC DIGITAL COMMON
DC DIRECT CURRENT
DCD DECODE
DCD DOUBLE CHANNEL DUPLEX
DCDR DECODER
DCF DOCUMENT COMPOSITION FACILITY
DCH DISCHARGE
DCP DISCRETE CODING PANEL
DCPU DATA LINK CONTROL & DISPLAY UNIT
DCS DESIGNATED CERTIFICATION SPECIALIST
DCS DOUBLE CHANNEL SIMPLEX
DCVR DIRECT CURRENT VOLTAGE RATIO
DDA DIGITAL DIFFERENTIAL ACCUMULATION
DDD DESIGN DESCRIPTION DOCUMENT
DDI DESIGN DRAWING INSTRUCTION
DDI DOCUMENTARY DATA INSERT
DDM DEPTH OF DIFFERENTIAL MODULATION
DDM DIGITAL DATA MODULE
DDRMI DIGITAL DISTANCE AND RADIO MAGNETIC INDICATOR
DDS DECLINATION (=VAR)
DDT DOWN LINK DATA TRANSFER
DEC DIGITAL DATA MODULE
DECEL DECELERATE, DECELERATION
DECR DECREASE
DEDP DATA ENTRY AND DISPLAY PANEL
DEF DEFINITION
DEFDARS DIGITAL EXPANDABLE FLIGHT DATA ACQUISITION AND RECORDING SYSTEM
DEFL DEFLECT
DEG C DEGREE CELSIUS
DEG F DEGREE FAHRENHEIT
DEG DEGREE
DEL DELAYS
DEL DELETE
DEL DELETION
DELTA P DIFFERENTIAL PRESSURE
20 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
DEM DIGITAL ELECTRONIC MODULE
DEMOD DEMODULATOR
DEMUX DEMULTIPLEXER
DEP DATA ENTRY PLUG
DEP DEPARTURE
DEPL DEPLOY
DEPRESS DEPRESSURIZATION
DEPT DEPARTMENT
DES DESCENT
DESC DESCENT
DESCR DESCRIPTION
DEST DESTINATION
DET DETECTION DETECTOR
DET DETENT
DEU DECODER / ENCODER UNIT
DEV DEVIATION
DEVN DEVIATION
DEX ACCESS DEMANDED
DF DIRECTION FINDER
DFA DELAYED FLAPS APPROACH
DFCS DIGITAL FLIGHT CONTROL SYSTEM
DFDAMU DIGITAL FLIGHT DATA ACQUISITION AND MANAGEMENT UNIT
DFDAU DIGITAL FLIGHT DATA ACQUISITION UNIT
DFDR DIGITAL FLIGHT DATA RECORDER
DFDRS DIGITAL FLIGHT DATA RECORDER SYSTEM
DFT DRIFT
DG DIRECTIONAL GYRO
DGA DELEGATION GENERALE POUR L'ARMEMENT
DGAC DIECTION GENERALE DE L'AVIATION CIVILE
DGI DIGITAL INPUT
DGO DIGITAL OUTPUT
DGPS DIFFERENTIAL GLOBAL POSITIONING SYSTEM
DGTL DIGITAL
DH DEADHEAD
DH DECISION HEIGHT
DI DATA INPUT
DI DISPLAY INTERFACE
DI DROP IN
DI DSDL INTERFACE
DIA DIAMETER
DIAPH DIAPHRAME
DIFF DIFFERENTIAL
DIGI DIGITAL INPUT
DIGO DIGITAL OUTPUT
DIL DUAL IN LINE
DIM DIMENSION
DIM DIMMING
DIN DEUTSCHE INDUSTRIE NORM
DIPLXR DIPLEXER
DIR TO DIRECT TO
DIR DIRECT, DIRECTION
DIR DIRECTOR
DIR DIRECTORY
DIS IN DISCRETE INPUT
DIS DISAGREEMENT
DIS DISCRETE
DIS DISPLAY
DISC DISCONNECT
DISCH DISCHARGE
Aircraft Systems - Abbreviations and Acronyms 21
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
DISCO DISCONNECT
DISCR DISCRIMINATOR
DISCTN DISCONNECTION
DISK DISKETTE
DISRMD DISARMED
DIST DISTANCE
DISTR DISTRIBUTION
DITS DIGITAL INFORMATION TRANSFER SYSTEM (ARINC 429)
DIU DIGITAL INTERFACE UNIT
DL DATA LOADER
DLC DIRECT LIFT CONTROL
DLE DATA LINK ESCAPE
DLF DOCUMENT LIBRARY FACILITY
DLH DEUTSCHE LUFTHANSA
DLS DATA LINK SYSTEM
DLY DELAY
DM DESIGN MANUAL
DMA DIRECT MEMORY ACCESS
DMC DATA MANAGEMENT COMPUTER (AIDS)
DMC DEMAND MEASURING COMPUTER
DMC DESIGN MODIFICATION COMMITTEE
DMC DISPLAY MANAGEMENT COMPUTER (EIS)
DMCU DRAIN MAST CONTROL UNIT
DMD DEMAND
DME DISTANCE MEASUREMENT EQUIPMENT
DMP DISPLAY MANAGEMENT PROCESSOR
DMPR DAMPER
DMU DATA MANAGEMENT UNIT (ACMS)
DMU DATA MANAGEMENT UNIT (AIDS)
DMU DESIGN MOCK-UP
DMU DISPLAY MANAGEMENT UNIT
DN DOWN
DNC DO NOT CORRECT
DNG DATA NO GOOD
DNI DRAWING NUMERICAL INDEX
DNLK DOWNLINK
DNLK DOWNLOCK, DOWNLOCKED
DO DATA OUTPUT
DO DROP OUT
DOA DESIGN ORGANIZATION APPROVAL
DOC DATA DOCUMENTARY DATA
DOC DIRECT OPERATING COSTS
DOC DOCUMENT
DOD DEPARTMENT OF DEFENSE
DOS DISK OPERATING SYSTEM
DOW DRY OPERATING WEIGHT
DP DIFFERENTIAL PROTECTION
DPCT DIFFERENTIAL PROTECTION CURRENT TRANSFORMER
DPI DIFFERENTIAL PRESSURE INDICATOR
DPI DOTS PER INCH
DPL DETAILED PARTS LIST
DPL DURING DEPLOY
DPLD DEPLOYED
DPM DESIGN PROGRAM MEETING
DPSK DIFFERENTIAL PHASE SHIFT KEYING
DPU DISPLAY PROCESSING UNIT
DQL DOCUMENT QUERY LANGUAGE
DR DEAD RECKONING
DR DOOR
DRAM DYNAMIC RANDOM ACCESS MEMORY
22 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
DRF DRIFT FAILURE
DRG DRAWING
DRIP DESIGN RESPONSE INTENDED FOR PLAYBACK
DRM DUCT REPAIR MANUAL
DRMI DISTANCE RADIO MAGNETIC INDICATOR
DRVG DRIVING
DRVN DRIVEN
DRVR DRIVER
DSAPP DISAPPEARANCE
DSCRM DISCRIMINATOR
DSCRT DISCRETE
DSCS DOOR (AND ESCAPE) SLIDES CONTROL SYSTEM
DSENGD DISENGAGED
DSI DISCRETE INPUT
DSO DISCRETE OUTPUT
DSP DIGITAL SIGNAL PROCESSOR
DSP DISPLAY
DSPL DISPLAY
DSR TK DESIRED TRACK
DT DAR TAPE
DTD DATED
DTE DATA TERMINAL EQUIPMENT
DTG DISTANCE TO GO
DTK DESIRED TRACK
DTMF DUAL TONE MULTIPLE FREQUENCY
DTMS DAMAGE TOLERANCE MONITORING SYSTEM
DTP DESKTOP PUBLISHING
DU DISPLAY UNIT
DUM DUMMY
DV DIRECTEUR DE VOL (= FD)
DVM DIGITAL VOLTMETER
DWG DRAWING
DWN DOWN
DX ACCESS DEMANDED
DYNMTC DYNAMOMETRIC
E ECHO
E / E COMP ELECTRIC AND ELECTRONIC COMPARTMENT
E / R EMITTER / RECEPTOR
E / T ELECTRICAL TRIM
E / W ENGINE / WARNING
E / WD ENGINE AND WARNING DISPLAY
E EAST
EADI ELECTRONIC ATTITUDE DIRECTOR INDICATOR (PFD)
EAPROM ELECTRICALLY ALTERABLE PROGRAMMABLE READ ONLY MEMORY
EAROM ELECTRICALLY ALTERABLE READ ONLY MEMORY
EAS EQUIVALENT AIRSPEED
EAT EXPECTED APPROACH TIME
EBL ELECTRONIC BEARING LINE
EBS ENGINE BUILD SPECIFICATION
EBU ENGINE BUILDUP UNIT
EC ELECTRONIC COMPARTMENT
EC ELECTRONIC CONTROL
EC ENGINE CONTROL
ECAM ELECTRONIC CENTRALIZED AIRCRAFT MONITORING
ECB ELECTRONIC CONTROL BOX (APU)
ECC ENTERTAINMENT CONTROL CENTER
ECDB EQUIPMENT CENTRALIZED DATA BASE
ECDS ELECTRONIC CHART DISPLAY SYSTEM
Aircraft Systems - Abbreviations and Acronyms 23
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
ECH EMERGENCY CONTROL HANDLE
ECM ENGINE CONDITION MONITORING
ECMS ELECTRICAL CONTACTOR MANAGEMENT
ECMS ENVIRONMENTAL CONDITION MONITORING SYSTEM
ECMU ELECTRICAL CONTACTOR MANAGEMENT UNIT
ECON ECONOMIC / ECONOMY
ECP ECAM CONTROL PANEL
ECP EFIS CONTROL PANEL
ECS ENVIRONMENTAL CONDITIONING SYSTEM
ECS ENVIRONMENTAL CONTROL SYSTEM
ECU AIR ECU AIR EJECTOR SOLENOID
ECU ELECTRONIC CONTROL UNIT (CFM ENGINE)
ECU ELECTRONIC CONTROL UNIT (CFM ENGINE)
ECU ENGINE CONTROL UNIT (CFM ENGINE)
ECUCV ELECTRONIC CONTROL UNIT COOLING VALVE
ECW ENGINE CONTROL WORD
ECYC ENGINE START CYCLES
ED EDGE DISTANCE
EDA ENGINE DEDICATED ALTERNATOR
EDMC ENGINEERING DRAWING MICROFILM CARD
EDP ELECTRONIC DATA PROCESSING
EDP ENGINE DRIVEN PUMP
EDPIS ELECTRONIC DIFFERENTIAL PRESSURE INDICATOR SWITCH
EE ELECTRIC AND ELECTRONIC
EEC ELECTRONIC ENGINE CONTROL (IAE ENGINE)
EEGS EMERGENCY ELECTRICALLY GENERATOR SYSTEM
EEPROM ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY
EEPROM ELECTRICALLY ERASABLE PROGRAMMABLE READ ONLY MEMORY
EFCC ELECTRONIC FLIGHT CONTROL COMPUTER
EFCS ELECTRONIC FLIGHT CONTROL SYSTEM
EFCU ELECTRONIC FLIGHT CONTROL UNIT
EFDU ENGINE FIRE DETECTION UNIT
EFF EFFECTIVE
EFH ENGINE FLIGHT HOURS
EFIS CP EFIS CONTROL PANEL
EFIS SGU EFIS SYBOL GENERATOR UNIT
EFIS ELECTRONIC FLIGHT INSTRUMENT SYSTEM
EFOB ESTIMATED FUEL ON BOARD
EG EXAMPLE GIVEN
EG EXEMPLI GRATIA (LAT), FOR EXAMPLE, FOR INSTANCE
EGC EMERGENCY GENERATOR CONTACTOR
EGCIU ELECTRICAL GENERATOR INTERFACE UNIT (GE ENGINE)
EGCU ELECTRICAL GENERATOR CONTROL UNIT
EGIU ELECTRICAL GENERATION INTERFACE UNIT
EGP EXHAUST GAS PRESSURE
EGT EXHAUST GAS TEMPERATURE
EGTA EXHAUST GAS TEMPERATURE APU
EGTP EGT APU PEAK
EGTR EGT APU REFERENCE
EHA ELECTRO / HYDROSTATIC ACTUATOR
EHF EXTREMELY HIGH FREQUENCY
EHFDP ENGINE HEALTH FIXED DATA PANEL
EHL ELEVATOR HINGE LINE
EHM ENGINE HEALTH MONITORING
EHMS ENGINE HEALTH MONITORING SYSTEM
EHRS ENGINE HOURS (BETWEEN WHEEL OFF / WHEEL ON)
EHRS FLIGHT HOURS ENGINE
EHSI ELECTRONIC HORIZONTAL SITUATION INDICATOR (ND)
EHSV ELECTRO HYDRAULIC SERVO VALVE
EIA ELECTRONIC INDUSTRIES ASSOCIATION
24 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
EICAS ENGINE INDICATION AND CREW ALERTING SYSTEM
EIPC ENGINE ILLUSTRATED PARTS CATALOG
EIS ELECTRONIC INSTRUMENT SYSTEM
EIS ENGINE INSTRUMENT SYSTEM
EIS ENTRY INTO SERVICE
EIU ELECTRONIC INSTRUMENT UNIT
EIU ENGINE INTERFACE UNIT
EIVMU ENGINE INTERFACE AND VIBRATION MONITORING UNIT
EL ELECTRO LUMINESCENT
EL ELEVATION
EL ELEVATOR
EL EQUIPMENT LIST
ELA ELECTRICAL LOAD ANALYSIS
ELAC ELEVATOR AND AILERON COMPUTER
ELAPS ELAPSED TIME
ELC ELECTRONIC LIBRARY COMPUTER
ELDOR ELECTRONIC DOCUMENT RETRIEVAL
ELEC ELECTRIC / ELECTRICAL
ELECS ELECTRONICS
ELEM ELEMENT
ELEV ELEVATION ELEVATOR
ELM EXTENDED LENGTH MESSAGE
ELS ELECTRONIC LIBRARY SYSTEM
ELT EMERGENCY LOCATOR TRANSMITTER
ELV ELEVATION
EM END OF MEDIUM
EM ENGINE MANUAL
EMC ELECTRO MAGNETIC COMPATIBILITY
EMER GEN EMERGENCY GENERATOR
EMER EMERGENCY
EMF ELECTROMOTIVE FORCE
EMI ELECTRO MAGNETIC INTERFERENCES
EMLS EMERGENCY LIGHTING SYSTEM
EMP ELECTRO MAGNETIC PULSE
EMP EMPENAGE
EMRG EMERGENCY
EMU ENGINE MAINTENANCE UNIT
EMU ENGINEERING MOCK-UP
EN EURO NORM
ENB ENABLE
ENBL ENABLE
ENCD ENCODE
ENCDR ENCODER
ENCL ENCLOSURE
END ENDURANCE
ENG OUT ENGINE OUT
ENG ENGAGE
ENG ENGINE
ENGA ENGAGE
ENGD ENGAGED
ENGR ENGINEER
ENQ ENQUIRE
ENRGZ ENERGIZE
ENT ENTRY
ENTR ENTRANCE
ENV ENVELOPE
EO SID ENGINE OFT STANDARD INSTRUMENT DEPARTURE
EO THR RED ENGINE OTF THRUST REDUCTION
EO THR RED ENGINE OUT THRUST REDUCTION
Aircraft Systems - Abbreviations and Acronyms 25
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
EO ENGINE OFF
EO ENGINE OUT
EO ENGINEERING ORDER
EOH ENGINE OPERATING HOURS
EOP END OF PART
EOT END OF TAPE
EOT END OFF TRANSMISSION
EP ENTRY PANEL
EPC EXTERNAL POWER CONTACTOR
EPCU EXTERNAL POWER CONTROL UNIT
EPD EXTENDED PRINCIPAL DIAGRAM
EPE ESTIMATED POSITION ERROR
EPGS ELECTRICAL POWER GENERATION SYSTEM
EPLD ELECTRONICALLY PROGRAMMABLE LOGIC DEVICE
EPLD ERASABLE PROGRAMMABLE LOGIC DEVICE
EPR D EPR DESCENT
EPR L EPR LATCH
EPR ENGINE POWER RATIO
EPR ENGINE PRESSURE RATIO (IAE ENGINE)
EPR EXHAUST PRESSURE RATIO
EPRI ENGINE PRESSURE RATIO INDICATION
EPROM ELECTRICALLY PROGRAMMABLE READ ONLY MEMORY
EPROM ERASABLE PROGRAMMABLE READ ONLY MEMORY
EPSU EMERGENCY POWER SUPPLY UNIT
EPU EMERGENCY POWER UNIT
EQ EQUIPMENT
EQID EQUIPMENT IDENTIFIER
EQPT EQUIPMENT
EQT EQUIPMENT
ER ELEVATOR RIB
ER EXPANDED RANGE
ER EXTERNAL POWER
ERL ECONOMIC REPAIR LIFE
ERS ERASE
ERT ENGINE RUNNING TIME
ESC ESCAPE
ESD ELECTRO SENSITIVE DEVICE
ESD ELECTRO STATIC DISCHARGE
ESD ELECTRONIC SYSTEM DISPLAY
ESD ELECTROSTATIC SENSITIVE DEVICE
ESG EQUIPMENT SUPPORT CARGO
ESLB ECAM SYSTEM LOGIC BOOK
ESM ENGINE SHOP MANUAL
ESN ENGINE SERIAL NUMBER
ESP ELECTRICAL STANDARD PRACTICES
ESS ESSENTIAL
EST ESTIMATED
ET ELECTRICAL TRIM
ET ELAPSES TIME
ETA ESTIMATED TIME OF ARRIVAL
ETB END OF TRANSMISSION BLOCK
ETC ESSENTIAL TRANSFER CONTACTOR
ETD ESTIMATED TIME OF DEPARTURE
ETE ESTIMATED TIME EN ROUTE
ETI ELAPSES TIME INDICATOR
ETO ESTIMATED TIME OVER
ETOPS EXTENDED RANGE TWIN ENGINE OPERATION
ETP EQUAL TIME POINT
ETS EQUIPMENT TECHNICAL SPECIFICATION
ETX END OF TEXT
26 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
EUC ENGINEERING UNIT CONVERSION
EV ELECTRO VALVE
EVAC EVACUATION
EVM ENGINE VIBRATION MONITORING
EVMU ENGINE VIBRATION MONITORING UNIT
EWD ENGINE AND WARNING DISPLAY
EWS ELECTRONIC WARNING SYSTEM
EX EXAMPLE
EX EXTRACTOR
EXC EXCITATION
EXCD EXITED
EXCESS EXCESSIVE
EXCG EXCITING
EXCN EXCITATION
EXEC EXECUTE
EXH EXHAUST
EXP EXPANSION
EXP EXPEDITE
EXPED EXPEDITE
EXPL EXPLOSIVE
EXT EXTENDED
EXT EXTENSION
EXT EXTERIOR
EXT EXTERNAL
EXT EXTINGUISH, EXTINGUISHER, EXTINGUISHING
EXT PWR EXTERNAL POWER
EXTC EXTRACT
EXTCD EXTRACTED
EXTCG EXTRACTING
EXTCN EXTRACTION
EXTD EXTENDED
EXTG EXTENDING
EXTI EXTINGUISH
EXTIG EXTINGUISHING
EXTING EXTINGUISH, EXTINGUISHING
EXTIR EXTINGUISHER
EXTN EXTENSION
EXTR EXTRACTOR
EXTR EXTRUSION
EXTRACT EXTRACTION
EZ ELECTRICAL ZERO
F FOXTROTT
F / C FIRST CLASS
F / C FLIGHT CONTROL
F / C FULLY CLOSED
F / CTL FLIGHT CONTROL
F / D FLIGHT DIRECTOR
F / D FUSELAGE DATUM
F / E FLIGHT ENGINEER
F / O FIRST OFFICER
F / S FAST / SLOW
F / U FOLLOW-UP
F / W FAILURE WARNING
F FAHRENHEIT
F FAULT
F FLAP
F FORWARD
F FREQUENCY
Aircraft Systems - Abbreviations and Acronyms 27
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
F FUEL
F.DES FINAL DESCENT
FAA FEDERAL AVIATION ADMINISTRATION (USA)
FAC FLIGHT AUGMENTATION COMPUTER
FACS FLIGHT AUGMENTATION COMPUTER SYSTEM
FADEC FULL AUTHORITY DIGITAL ENGINE CONTROL (SYSTEM)
FAF FINAL APPROACH FIX
FAIL FAILED, FAILURE
FAIR FAIRING
FAL FINAL ASSEMBLY LINE
FANS FUTURE AIR NAVIGATION SYSTEM
FAOM FLIGHT ATTENDANT OPERATING MANUAL
FAR FEDERAL AVIATION REGULATIONS (USA)
FAR FORWARD ATTENDANT PANEL
FAR FUEL / AIR RATIO
FAS FLIGHT AUGMENTATION SYSTEM
FAV FAN AIR VALVE
FAWP FINAL APPROACH WAYPOINT
FBS FIXED BASE SIMULATOR
FBW FLY BY WIRE
FC FIRST CLASS
FC FLIGHT CYCLE
FC FREIGHT CONTAINER
FC FULLY CLOSED
FCA FUEL CONTROL ASSEMBLY
FCB FLOOR CROSS BEAM
FCC FLIGHT CONTROL COMPUTER
FCC FORWARD CARGO COMPARTMENT
FCCS FLIGHT CONTROL COMPUTER SYSTEM
FCCU FLIGHT CONTROL COMPUTER UNIT
FCD FLIGHT CONTROL DISPLAY
FCD FULL COLOR DISPLAY
FCDC FLIGHT CONTROL DATA COMPUTER
FCDC FLIGHT CONTROL DATA CONCENTRATOR
FCHC FORWARD CARGO HEAT CONTROLLER
FCMC FLIGHT CONTROL MONITORING COMPUTER
FCMS FUEL CONTROL AND MONITORING COMPUTER
FCMS FUEL CONTROL MANAGING COMPUTER
FCO FUNCTION CODE OUTPUT
FCOC FUEL COOLED OIL COOLER
FCOM FLIGHT CREW OPERATING MANUAL
FCPC FLIGHT CONTROL PRIMARY COMPUTER
FCPI FIIGHT CONTROL POSITION INDICATOR
FCRC FORWARD CREW REST COMPARTMENT
FCSB FLIGHT COMPUTER SYSTEM BUS
FCSC FLIGHT CONTROL SECONDARY COMPUTER
FCST FORECAST
FCTL FLIGHT CONTROL
FCTN FUNCTION
FCU FLIGHT CONTROL UNIT
FCU FLUSH CONTROL UNIT
FCU FUEL CONTROL UNIT
FCV FLOW CONTROL VALVE
FD FLIGHT DIRECTOR
FD FUSELAGE DATUM
FDAU FLIGHT DATA ACQUISITION UNIT
FDB FLOOR DISCONNECT BOX
FDBK FEEDBACK
FDDC FLOPPY DISC DRIVE CONTROL
FDDU FLOPPY DISC DRIVE UNIT
28 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
FDDVA FLOW DIVIDER AND DRAIN VALVE ASSEMBLY
FDEP FLIGHT DATA ENTRY PANEL
FDIU FLIGHT DATA INTERFACE UNIT
FDR FLIGHT DATA RECORDER
FDS FIRST DELIVERY STANDARD
FDSU FLIGHT DATA STORAGE UNIT
FDU FIRE DETECTION UNIT
FE FLIGHT ENVELOPE
FEC FLIGHT ENVELOPE COMPUTATION
FEP FLUOR ETHYLEN PROPYLEN
FET FIELD EFFECT TRANSISTOR
FEW FUEL EMPTY WEIGHT
FF FORM FEED
FF FUEL FLOW
FFCC FORWARD FACING CREW COCKPIT CONCEPT
FFCCV FAN FRAME COMPRESSOR CASE VIBRATION
FFP FIXED FORM PRICE
FFS FIRST FLIGHT STANDARD
FFS FULL FLIGHT SIMULATOR
FG FLIGHT GUIDANCE
FGC FLIGHT GUIDANCE COMPUTER
FGN FOREIGN
FGS FLIGHT GUIDANCE SYSTEM
FH FLIGHT HOURS
FHD FUEL HYDRANT DISPENSER
FI FAULT ISOLATION
FIC FLIGHT CREW
FIDS FAILURE INFORMATION DETECTION SYSTEM (DISPLAY)
FIDS FAULT INDICATION AND DETECTION SYSTEM
FIDS FAULT ISOLATION & DETECTION SYSTEM
FIFO FIRST IN / FIRST OUT
FIG FIGURE
FIL FILAMENT
FIL FILLET
FILH FILLISTER HEAD
FIM FAULT ISOLATION MANUAL
FIM FAULT ISOLATION MEMORY
FIM FAULT ISOLATION MONITOR
FIN FUNCTIONAL ITEM NUMBER, FUNCTIONAL IDENTIFICATION NUMBER
FIR FLIGHT INFORMATION REGION
FIR FULL INDICATOR READING
FIS FLIGHT INFORMATION SERVICE
FIX APPROACH POINTS (INITIAL, INTERMEDIATE AND FINAL APPROACH FIX)
FIX FIXED
FL CH FLIGHT LEVEL CHANGE
FL FLIGHT LEVEL
FL FLOOD
FL FLOW
FL FLUID
FLA FORWARD LOOKING AFT
FLA FUTURE LARGE AIRCRAFT
FLA.G FLAMMABLE COMPOUND GAS
FLA.G FLAMMABLE LIQUID
FLA.S FLAMMABLE SOLID
FLAG WARNING INDICATION FOR FAILED SYSTEM
FLC FEEL AND LIMITATION COMPUTER
FLDK FLIGHT DECK
FLEX FLEXIBLE
FLG FLANGE
Aircraft Systems - Abbreviations and Acronyms 29
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
FLH FLAT HEAD
FLIR FORWARD LOOKING INFRARED
FLOW FUEL FLOW METER
FLP FLAP
FLSCU FUEL LEVEL SENSING CONTROL UNIT
FLSS FUEL LEVEL SENSING SYSTEM
FLT CTL FLIGHT CONTROL
FLT FLIGHT
FLTN FLIGHT NUMBER
FLTPH FLIGHT PHASE
FLX / MCT FLEXIBLE TAKE OFF / MAXIMUM CONTINUOUS POWER
FLX TO FLEXIBLE TAKE OFF
FM FLIGHT MANAGEMENT
FM FREQUENCY MODULATION
FMA (APD) FLIGHT MODE ANNUNCIATOR (PANEL)
FMC FLIGHT MANAGEMENT COMPUTER
FMGC FLIGHT MANAGEMENT AND GUIDANCE COMPUTER
FMGEC FLIGHT MANAGEMENT GUIDANCE AND ENVELOPE COMPUTER
FMGES FLIGHT MANAGEMENT GUIDANCE AND ENVELOPE SYSTEM
FMGS FLIGHT MANAGEMENT AND GUIDANCE SYSTEM
FMMS FUEL MANIFOLD MODULATING VALVE
FMS FLIGHT MANAGEMENT SYSTEM
FMU FUEL METERING UNIT
FMV FUEL METERING VALVE
FN ENGINE THRUST
FO FAILED OPEN
FO FULLY OPEN
FOB FUEL ON BOARD
FOC FREE OF CHARGE
FOD FOREIGN OBJECT DAMAGE
FPA FLIGHT PATH ANGLE
FPAC FLIGHT PATH ACCELERATION
FPEEPMS FLOOR PATH EMERGENCY ESCAPE PATH MARKING SYSTEM
F-PLN FLIGHT PLAN
FPPU FEED BACK POSITION PICK-OFF UNIT
FPV FLIGHT PATH VECTOR
FQ FUEL QUANTITY
FQI FUEL QUANTITY INDICATING
FQI FUEL QUANTITY INDICATION
FQI FUEL QUANTITY INDICATOR
FQIC FUEL QUANTITY INDICATION COMPUTER
FQIS FUEL QUANTITY INDICATION SYSTEM
FQU FUEL QUANTITY UNIT
FR FRAME
FREQ FREQUENCY
FRM FAULT REPORTING MANUAL
FRT FRONT
FRTO CITY PAIR FROM / TO
FRV FUEL RETURN VALVE
FSB FASTEN SEAT BELTS
FT / MN FEET PER MINUTE
FT FOOT / FEET
FT FUEL TEMPERATURE
FU FUEL USED
FWC FLIGHT WARNING COMPUTER
FWD FORWARD
FWS FLIGHT WARNING SYSTEM
G GOLF
30 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
G / A GO AROUND
G / S GLIDE SLOPE
G / S GROUND SPEED
G GAIN
G GREEN
GA GO AROUND
GAL GALLON
GB GREAT BRITAIN
GBX GEARBOX
GCA GROUND CONTROLLED APPROACH
GCU GENERATOR CONTROL UNIT
GE GENERAL ELECTRIC
GEM GROUND BASED ENGINE MONITORING
GEN GENERATOR
GFRP GLASS FIBER REINFORCED PLASTIC
GIC GENERAL INSTRUCTION CARDS
GLA GENERATOR LOAD APU
GLC GENERATOR LINE CONTACTOR
GLE GENERATOR LOAD ENGINE
GLR GENERATOR LINE RELAY
GLS GLIDE SLOPE
GMT GREENWICH MEAN TIME
GND GROUND
GPCU GROUND POWER CONTROL UNIT
GPS GLOBAL POSITIONING SYSTEM (NAVSTAR)
GPWC GROUND PROXIMITY WARNING COMPUTER
GPWS GROUND PROXIMITY WARNING SYSTEM
GRD GROUND
GRND GROUND
GRP GEOGRAPHIC REFERENCE POINT
GRU GROUND REFRIGERATION UNIT
GRVTY GRAVITY
GS GLIDE SLOPE
GS GROUND SPEED
GTCP GAS TURBINE ENGINE COMPRESSOR POWER
GW GROSS WEIGHT
H HOTEL
H HEIGHT
H HOT
H HOUR
HARDOVER UNDESIRED SUDDEN MOVEMENT OF A/C BY FAULTY A/P SIGNAL
HC HARNESS AND CONNECTOR
HC HARNESS CABLE
HCF HEIGHT CYCLE FATIGUE
HCU HYDRAULIC CONTROL UNIT
HDG / S HEADING SELECTED
HDG HEADING
HDL HANDLE
HF HIGH FREQUENCY
HI HIGH
HL HIGHLIGHTS
HLD HOLD
HLDG HOLDING
HLTY HEALTHY
HMU HYDRO MECHANICAL UNIT
HOLD HOLDING
HORI HORIZON
HOT HIGH OIL TEMPERATURE
Aircraft Systems - Abbreviations and Acronyms 31
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
HP HIGH PRESSURE
HP HORSEPOWER
HPC HIGH PRESSURE COMPRESSOR
HPCR HIGH PRESSURE COMPRESSOR ROTOR
HPSOV HIGH PRESSURE SHUTOFF VALVE
HPT HIGH PRESSURE TURBINE
HPTACC HIGH PRESSURE TURBINE ACTIVE CLEARANCE CONTROL
HPTACCS HIGH PRESSURE TURBINE ACTIVE CLEARANCE CONTROL SYSTEM
HPTC HIGH PRESSURE TURBINE CLEARANCE
HPTCC HIGH PRESSURE TURBINE (ACTIVE) CLEARANCE CONTROL
HPTCCV HIGH PRESSURE TURBINE CLEARANCE CONTROL VALVE
HPTR HIGH PRESSURE TURBINE ROTOR
HPV HIGH PRESSURE VALVE
HSI HORIZONTAL SITUATION INDICATOR
HSMU HYDRAULIC SYSTEM MONITORING UNIT
HUD HEAD UP DISPLAY
HUDC HEAD UP DISPLAY COMPUTER
HV HIGH VOLTAGE
HVPS HIGH VOLTAGE POWER SUPPLY
HYD HYDRAULIC
I INDIA
I / C INSPECTION / CHECK
I / F INPUT PROCESSING & FAULT LOGIC
I / O INPUT / OUTPUT
I / P INPUT
I / P INTERCEPT POINT
I / P INTERCEPT PROFILE
IAE INTERNATIONAL AERO ENGINE: JAEC, ROLLS ROYCE, PRATT & WHIUNEY, MTU, FIAT AVIO
IAF INITIAL APPROACH FIX
IAS INDICATED AIR SPEED
IATA INTERNATIONAL AIR TRANSPORT ASSOCIATION
ICAO INTERNATIONAL CIVIL AVIATION ORGANIZATION
ID IDENTIFICATION
IDENT IDENTIFICATION, IDENTIFIER
IDENT SPECIAL IDENTIFICATION FOR ATC
IDG HX IDG OIL / FUEL HEAT EXCHANGER
IDG INTEGRATED DRIVE GENERATOR
IF INTERMEDIATE FREQUENCY
IFR INSTRUMENT FLIGHT RULES
IFSD IN FLIGHT SHUT DOWN
IGB INLET GEARBOX
IGN IGNITION
IGV INLET GUIDE VANE
IGVA INLET GUIDE VANES ACTUATOR
ILF INPUT LATCHED FAILED
ILS INSTRUMENT LANDING SYSTEM (LOC AND G/S)
IM INNER MARKER
IMC INSTRUMENT METEOROLOGICAL CONDITIONS
IMM IMMEDIATE
IMU INERTIAL MEASUREMENT UNIT
INB INBOUND
INBD INBOARD
INBO INBOARD
INCON CHANNEL IN CONTROL (FADEC)
INCR INCREMENT
INCREM INCREMENT
IND INDICATION, INDICATOR
INFO INFORMATION
32 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
INHIB INHIBITION
INIT INITIAL, INITIALIZATION
INL INLET
INOP INOPERATIVE
INP INPUT
INR INNER
INS INERTIAL NAVIGATION SYSTEM
INST INSTINCTIVE
INST INSTRUMENTS
INSTR INSTRUMENT
INT INTERPHONE
INTCP INTERCEPT
INTIPF INTERRUPT IN PROGRESS TEST FAILURE
INTM INTERMITTENT
INTPH INTERPHONE
INTRF INTERRUPT RETURN TEST FAILURE
INTRG INTERROGATOR
INU INERTIAL NAVIGATION UNIT
INV INVERTER
IOT IN OPERATING TEST
IP INTERMEDIATE PRESSURE
IPC ILLUSTRATED PARTS CATALOGUE
IPC INTERMEDIATE PRESSURE CHECK VALVE
IPCV INTERMEDIATE PRESSURE BLEED CHECK VALVE
IPPU INSTRUMENTATION POSITION PICK OFF UNIT
IPS INCH PER SECOND
IR INERTIAL REFERENCE
IR INFRARED
IRS INERTIAL REFERENCE SYSTEM
IRU INERTIAL REFERENCE UNIT
ISA INTERNATIONAL STANDARD ATMOSPHERE
ISDU INERTIAL SYSTEM DISPLAY UNIT (IRS)
ISO INTERNATIONAL STANDARDIZATION ORGANIZATION
ISOL ISOLATION
ISS INERTIAL SENSOR SYSTEM
ISU INERTIAL SENSOR UNIT
ISV INERTIAL VERTICAL SPEED
ITEM ILLUSTRATED TOOL AND EQUIPMENT MANUAL
ITF INSTRUCTION TEST FAILURE
IVS INERTIAL VERTICAL SPEED
J JULIETT
J JUNCTION
JAA JOINT AVIATION AUTHORITY (EUROPE)
JAM JAMMED
JAMF JET AIRCRAFT MAINTENANCE FUNDAMENTALS
JAMG JAMMING
JAR JOINT AIRWORTHINESS REQUIREMENTS (REGULATIONS) (EUROPE)
JB JUNCTION BOX
JCT JUNCTION
JFET JUNCTION FIELD EFFECT TRANSISTOR
JIC JOB INSTRUCTION CARDS
JK JACK
JOG JOGGLE
JPD JAMMING PROTECTION DEVICE
K KILO
K / A KEEP A LIVE
K KELVIN
Aircraft Systems - Abbreviations and Acronyms 33
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
KA CATHODE
KB KILO BYTE (1024 BYTES)
KCAS KNOTS CALIBRATED AIR SPEED
KEAS KNOTS EQUIVALENT AIR SPEED
KRUG KRUGER (KRÜGER)
KT KNOTS
KTS KNOTS
L LIMA
L & M LOGIC AND MONITOR
L & T LOAD AND TRIM
L / D LIFT / DRAG
L / E LEADING EDGE
L / G LANDING GEAR
L / H LEFT HAND
L LAVATORY
L LEFT
L LENGTH
LA LINEAR ACCELEROMETER
LAF LOAD ALLEVIATION FUNCTION
LAT REV LATERAL REVISE
LAT REV LATERAL REVISION
LAT LATITUDE
LATG BODY LATERAL ACCELERATION
LATP PRESENT POSITION LATITUDE
LAV LAVATORY
LBS LATERAL BEAM SENSOR
LBS POUNDS (MASS)
LBSF POUNDS (FORCE)
LC LOAD COMPRESSOR
LCD LIQUID CRYSTAL DISPLAY
LCDT LOAD COMPRESSOR DISCHARGE TEMPERATURE (APU)
LCF LOW CYCLE FATIGUE
LCFS LOAD COMPRESSOR FLOW SENSOR
LCIT LOAD COMPRESSOR INLET TEMPERATURE (APU)
LCN LOAD CLASSIFICATION NUMBER
LCSD LINE CHECK SUPPORTING DATA
LCTR LOCATOR
LCV LOAD CONTROL VALVE
LDCC LOWER DECK CARGO COMPARTMENT
LDG LANDING
LE LEADING EDGE
LED LIGHT EMITTING DIODE
LEP LIST OF EFFECTIVE PAGES
LF LATCHED FAILED
LF LOW FREQUENCY
LFES LANDING FIELD ELEVATION SELECTOR
LG / CTL LANDING GEAR CONTROL
LGCIU LANDING GEAR CONTROL AND INTERFACE UNIT, LANDING GEAR CONTROL AND INDICATING UNIT
LGCPU LANDING GEAR CENTRAL PROCESSING UNIT
LGDW LGCIU DISCRETE WORD
LGPIU LANDING GEAR POSITION INDICATOR UNIT, LANDING GEAR POSITION INTERFACE UNIT
LH LEFT HAND
LHMLG LEFT HAND MAIN LANDING GEAR
LHS LEFT HAND SIDE
LIM LIMIT / LIMITATION
LIS LOCALIZER INERTIAL SMOOTHING
LK LOCK
LL LATITUDE / LONGITUDE
34 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
LLS LEFT HAND SELECT KEY, LEFT LINE SELECT KEY
LLSK LEFT HAND LINE SELECT KEY
LNAV LATERAL NAVIGATION
LO PR LOW PRESSURE
LO LOW
LOC LOCALIZER
LOGO LOGOGRAM
LONG BODY LONGITUDINAL ACCELERATION
LONG LONGITUDE
LONGN LONGERON
LONP PRESENT POSITION LONGITUDE
LOP LOW OIL PRESSURE
LP VALVE LOW PRESSURE VALVE
LP LOW PRESSURE
LPC LOW PRESSURE COMPRESSOR
LPSOV LOW PRESSURE SHUTOFF VALVE
LPT LOW PRESSURE TURBINE
LPTACC LOW PRESSURE TURBINE ACTIVE CLEARANCE CONTROL
LPTACCS LOW PRESSURE TURBINE ACTIVE CLEARANCE CONTROL SYSTEM
LPTC LOW PRESSURE TURBINE CLEARANCE
LPTCC LOW PRESSURE TURBINE CLEARANCE CONTROL
LPTR LOW PRESSURE TURBINE ROTOR
LRRA LOW RANGE RADIO ALTIMETER
LRU LINE REPLACEABLE UNIT
LS 429 ARINC STANDARD 429, LOW SPEED, 12 - 14 KBAUD
LSA LOW SPEED AILERON
LSB LEAST SIGNIFICANT BIT
LSK LINE SELECT KEY
LSR LAST SIGNIFICANT BIT
LT LIGHT
LTT LEARNING THROUGH TEACHING
LVDT LINEAR VARIABLE DIFFERENTIAL TRANSDUCER (TRANSFORMER)
LVL 1 CH LEVEL CHANGE
LVL LEVEL
LW LANDING WEIGHT
M MIKE
M / P MAINTENANCE PRACTICE, MAINTENANCE PROCEDURE
M MACH NUMBER
M MAGENTA
MAC MEAN AERODYNAMIC CHORD
MAG DEC MAGNETIC DECLINATION
MAG VAR MAGNETIC VARIATION
MAG MAGNETIC
MAGENTA COLOR
MAGN MAGNETIC
MAINT MAINTENANCE
MAN MANUAL
MASI MACH AIRSPEED INDICATOR
MAX CLB MAXIMUM CLIMB
MAX DES MAXIMUM DESCENT
MAX END MAXIMUM ENDURANCE
MAX MAXIMUM
MC MASTER CAUTION
MCD MAGNETIC CHIP DETECTOR
MCDU MULTIFUNCTION CONTROL AND DISPLAY UNIT, MULTIPURPOSE CONTROL AND DISPLAY UNIT
MCL MAXIMUM CLIMB
MCP MODE CONTROL PANEL
MCQ MULTIPLE CHOICE QUESTIONNAIRE
Aircraft Systems - Abbreviations and Acronyms 35
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
MCT MAXIMUM CONTINUOUS THRUST
MCU MODULAR CONCEPT UNIT
MDA MINIMUM DECISION ALTITUDE
MDA MINIMUM DESCENT ALTITUDE
MDDU MULTIPURPOSE DISK DRIVE UNIT
MDH MINIMUM DECISION HEIGHT
MEC MAIN ENGINE CONTROL
MECH MECHANIC
MED MEDIUM
MEL MINIMUM EQUIPMENT LIST
MES MAIN ENGINE START
MF MEDIUM FREQUENCY
MFA MEMORIZED FAULT ANNUNCIATOR
MH MAGNETIC HEADING
MI MAGNETIC INDICATOR
MIC MICROPHONE
MID MIDDLE
MIL MILITARY INVENTORY (STANDARD) LIST
MIN ALT MINIMUM ALTITUDE
MIN FUEL MINIMUM FUEL
MIN TIME MINIMUM TIME
MIN MINIMUM
MISC MISCELLANEOUS
MKR MARKER (RADIO) BEACON
MLA MANEUVER LOAD ALLEVIATION
MLCV MANIFOLD LEAKAGE CONTROL VALVE
MLG MAIN LANDING GEAR
MLI MAGNETIC LEVEL INDICATOR
MLS MICROWAVE LANDING SYSTEM
MLW MAXIMUM LANDING WEIGHT
MM (AIRCRAFT) MAINTENANCE MANUAL
MM MIDDLE MARKER
MMEL MASTER MINIMUM EQUIPMENT LIST
MMH MAINTENANCE MANHOUR PER OPERATING HOUR
MMI MANUAL MAGNETIC INDICATOR
MMO MAXIMUM OPERATING MACH
MN MACH NUMBER
MN MINUTE
MNF MONITOR FAILURE
MOD MODIFICATION
MODE - S MODE SELECT
MODE A TRANSPONDER MODE A: 4 DIGITS OCTAL CODE TRANSMISSION
MODE B TRANSPONDER MODE B
MODE C TRANSPONDER MODE C: ALTITUDE REPORTING
MODE D TRANSPONDER MODE D
MODE S TRANSPONDER MODE S: SELECTIVE, NECESSARY FOR TCAS
MON MONITOR, MONITORED, MONITORING
MONG MONITORING
MOP MAIN OIL PRESSURE
MOP MAXIMUM OIL PRESSURE
MOP MINIMUM OIL PRESSURE
MOT MOTOR
MOT MOTOR OIL TEMPERATURE
MP MAINTENANCE PRACTICE, MAINTENANCE PROCEDURE
MPD MAINTENANCE PLANNING DOCUMENT
MPDS MAINTENANCE PLANNING DATA SUPPORT
MRB MAINTENANCE REVIEW BOARD
MRBD MAINTENANCE REVIEW BOARD DOCUMENT
MRDS MAINTENANCE AND RECORDING DATA SYSTEM
MRIU MAINTENANCE AND RECORDING INTERFACE UNIT
36 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
MS MILITARY SPECIFICATION, MILITARY STANDARD
MSA MINIMUM SAFE ALTITUDE
MSB MOST SIGNIFICANT BIT (BYTE)
MSDS MATERIAL SAFETY DATA SHEET
MSG MESSAGE
MSL MEAN SEA LEVEL
MSN MANUFACTURER SERIAL NUMBER
MSTR MASTER
MSU MODE SELECTOR UNIT (IRS)
MTBF MEAN TIME BETWEEN FAILURES
MTBR MEAN TIME BETWEEN REMOVALS
MTBUR MEAN TIME BETWEEN UNSCHEDULED REMOVAL
MTG MOUNTING
MTI MOVING TARGET INDICATOR
MTI MULTI TANK INDICATOR
MTOGW MAXIMUM TAKE OFF GROSS WEIGHT
MTOP MAINTENANCE TASK OPERATING PLAN
MTOW MAXIMUM TAKE OFF WEIGHT
MTP MAINTENANCE AND TEST PANEL (AFS)
MTS MAINTENANCE TRAINING SIMULATOR
MTSC MAINTENANCE TRAINING SUB - COMMITEE
MTW MAXIMUM TAKE OFF WEIGHT
MU MANAGEMENT UNIT
MUX MULTIPLEX, MULTIPLEXER
MW MAINTENANCE WORD
MW MASTER WARNING
MZFW MAXIMUM ZERO FUEL WEIGHT
N NOVEMBER
N / A NOT APPLICABLE
N / W NOSE WHEEL
N I WS NOSE WHEEL STEERING
N NORMAL
N NORTH
N ROTATION SPEED IN RPM OR %
N1 ENGINE FAN SPEED, LOW PRESSURE ROTOR SPEED
N1ACT N1 ACTUAL
N1C N1 COMMAND
N1CMD N1 COMMAND
N1MX N1 MAXIMUM
N2 HIGH PRESSURE ROTOR SPEED, CORE SPEED
N2ACT N2ACTUAL
NA NOT AVAILABLE
NA NOT REQUIRED
NA RPM (APU)
NAC NACELLE
NACA NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS
NAS NATIONAL AEROSPACE STANDARDS
NAV NAVIGATION
NAVAID NAVIGATION AID
NBPT NO BRAKE POWER TRANSFER
NC NORMALLY CLOSED
NCD NON COMPUTED DATA
ND NAVIGATION DISPLAY
NDB NON DIRECTIONAL BEACON
NDT NON DESTRUCTIVE TEST
NEG NEGATIVE
NFC NOT FULLY CLOSED
NFO NOT FULLY OPEN
Aircraft Systems - Abbreviations and Acronyms 37
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
NGV NOZZLE GUIDE VANE (APIC APU)
NIL N1 LIMIT
NLG NOSE LANDING GEAR
NM NAUTICAL MILES
NMI NAUTICAL MILE
NO NORMALLY OPEN
NO NUMBER
NORM NORMAL
NOVRAM NON VOLATILE READ ONLY MEMORY
NPA N APU PEAK
NRV NON RETURN VALVE
NS / FSB PANEL NO SMOKING / FASTEN SEAT BELT PANEL
NS NO SMOKING
NSS NEUTRAL SHIFT SENSOR
NTC NEGATIVE TEMPERATURE COEFFICIENT
NTM NON-DESTRUCTIVE TEST MANUAL
NTSB NATIONAL TRANSPORTATION SAFETY BOARD (USA)
NTSC NATIONAL TELEVISION STANDARDS COMMITTEE
NUM NUMERICAL
NVM NON VOLATILE MEMORY
NW NOSE WHEEL
O OSCAR
O / C OPEN CIRCUIT
O / F OUTPUT PROCESSING & FAULT LOGIC
O / P OUTPUT
O / V OUT FLOW VALVE
O2 OXYGEN
OAP OUTSIDE AIR PRESSURE
OAT OUTSIDE AIR TEMPERATURE
OBD OVERBOARD
OBRM ON BOARD REPLACEABLE MODULE (MEMORY)
OBSV OBSERVATION
OC ON COURSE
OCCPNT OCCUPANT
OCR OPTICAL CHARACTER READING
OEB OPERATIONS ENGINEERING BULLETIN
OFF / R OFF / RESET
OFFR OFF / RESET
OFST OFFSET
OGV OUTLET GUIDE VANE
OHSC OVERHEAD STOWAGE COMPARTMENTS
OHU OPTICAL HEAD UNIT
OI OPERATING INSTRUCTIONS
OIK OIL QUANTITY CORRECTED
OIL HX ENGINE OIL HEAT EXCHANGER
OIP OIL PRESSURE
OIQ OIL QUANTITY
OIQH OIL CONSUMPTION
OIT OIL TEMPERATURE
OK CORRECT
OLMS OPERATIONAL LOADS MONITORING SYSTEM
OM OUTER MARKER
OMS ONBOARD MAINTENANCE SYSTEM
ONS OMEGA NAVIGATION SYSTEM
OPER OPERATING, OPERATION, OPERATIVE
OPP OPPOSITE
OPS OPERATION
OPT OPTIMUM
38 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
OPV OVER PRESSURE VALVE
ORM ONBOARD REPLACEABLE MODULE
OS OVER SPEED
OSG OVER SPEED GOVERNOR
OSH ON BOARD SOFTWARE HANDLING
OSS OVER STATION SENSOR
OT OVER TEMPERATURE
OTA OIL SUMP TEMPERATURE (APU)
OUT OUTLET
OUTB OUTBOUND
OUTBD OUTBOARD
OUTR OUTER
OV OUT FLOW VALVE
OV OVER
OVBD OVERBOARD
OVHD OVERHEAD
OVHT OVERHEAT
OVP OUTFLOW VALVE POSITION
OVP OVER PRESSURE
OVP OVER PRESSURE VALVE
OVPRESS OVER PRESSURE
OVRD OVERRIDE
OVSP PROT OVER SPEED PROTECTION
OVSPD OVER SPEED
OXY OXYGEN
P PAPA
DP DIFFERENTIAL PRESSURE
P - ALT PROFILE ALTITUDE
P - CLB PROFILE CLIMB
P - DES PROFILE DESCENT
P - MACH PROFILE MACH
P - SPEED PROFILE SPEED
P / B PUSH BUTTON (SWITCH)
P / BSW PUSH BUTTON SWITCH
P / C PRESSURE CASE
P / N PART NUMBER
P / RST PUSH TO REST
P0 AMBIENT STATIC AIR PRESSURE
PA PASSENGER ADDRESS / PUBLIC ADDRESS
PAM PULSE AMPLITUDE MODULATION
PAMB PRESSURE AMBIENT
PAR PRECISION APPROACH RADAR
PARK PARKING
PAS PATH ATTITUDE SENSOR
PAS PITCH ATTITUDE SENSOR
PAX PASSENGERS
PB BURNER PRESSURE
PB PRESSURE BYPASS
PB PUSH BUTTON (SWITCH)
PBE PROTECTIVE BREATHING EQUIPMENT
PBV PACK BYPASS VALVE
PC / PB PRESSURE COMPRESSOR / PRESSURE BURNER
PC PRESSURE CASE
PCB PRINTED CIRCUIT BOARD
PCE PRE COOLER ENTRANCE
PCM PULSE CODE MODULATION
PCR PRESSURE CASE REGULATED
PCSW PITCH CONTROL WHEEL STEERING
Aircraft Systems - Abbreviations and Acronyms 39
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
PCU POWER CONTROL UNIT
PD PRE COOLER INLET PRESSURE
PDU PILOT DISPLAY UNIT
PDU POWER DRIVE UNIT
PED PEDESTAL
PERF PERFORMANCE
PES CTRL PASSENGER ENTERTAINMENT SYSTEM CONTROLLER
PES PASSENGER ENTERTAINMENT SYSTEM
PF PILOT FLYING
PFD PRIMARY FLIGHT DISPLAY
PFDVC PRESSURE FLOW DIVIDER VALVE CARTRIDGE
PFR POST FLIGHT REPORT
PG PAGE
PH POUNDS PER HOUR
PHC PROBE HEAT COMPUTER
PIPC POWER PLANT ILLUSTRATED PARTS CATALOG
PIREP PILOT REPORTS
PIU PASSENGER INFORMATION UNIT
PLD PROGRAMMABLE LOGIC DEVICE
PMA PERMANENT MAGNETIC ALTERNATOR
PMC POWER MANAGEMENT CONTROL
PMDB PRODUCTION MANAGEMENT DATA BASE
PMG PERMANENT MAGNETIC GENERATOR
PMR PERFORMANCE MAINTENANCE RECORDER
PMUX POWER MULTIPLEXER, POWER PLANT MULTIPLEXER
PN PART NUMBER
PNEU PNEUMATIC
PNF PILOT NON FLYING
PNL PANEL
POB PRESSURE OFF BRAKE
POS POSITION
POSN POSITION
POT POTENTIOMETER
PPH POUNDS PER HOUR
PPI PLANNED POSITION INDICATOR
PPM PULSE POSITION MODULATION
PPOS PRESENT POSITION
PPS POUNDS PER SECOND
PPU POSITION PICK OFF UNIT
PR PRESSURE
PR REGULATED PRESSURE (DOWNSTREAM OF BLEED VALVE)
PRAM PRERECORDED ANNOUNCEMENT MONITOR
PRE FLT PRE FLIGHT
PRECOOL PRE COOLER
PRED PREDICTION
PREREC PRE RECORDED
PRESEL PRESELECTOR
PRESS PRESSURE, PRESSURIZATION
PREV PREVIOUS (PAGE)
PREV PREVISION
PRIM FLIGHT CONTROL PRIMARY COMPUTER (FCPC)
PRIM PRIMARY
PROC T PROCEDURE TURN
PROC PROCEDURE
PROF PROFILE (VERTICAL)
PROG PROGRESS
PROM PROGRAMMABLE READ ONLY MEMORY
PROT PROTECTION
PROTEC PROTECTION
PROX SNSR PROXIMITY SENSOR
40 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
PROX PROXIMITY
PRSOV PRESSURE RAISING AND SHUTOFF VALVE
PRTR PRINTER
PRV PRESSURE REGULATOR VALVE
PS POWER SECTION
PS PUMP SUPPLY PRESSURE
PSB BEARING PRESSURE
PSC PRE SET COURSE
PSCU PROXIMITY SWITCH CONTROL UNIT
PSH PRE SET HEADING
PSI POUNDS PER SQUARE INCH (14.5 PSI = 1 BAR)
PSIA POUNDS PER SQUARE INCH ABSOLUTE
PSID POUNDS PER SQUARE INCH DIFFERENTIAL
PSIG POUNDS PER SQUARE INCH GAUGE
PSIU PASSENGER SERVICE AND INFORMATION UNIT
PSNSRF PRESSURE SENSOR FAILURE
PSR PRIMARY SURVEILLANCE RADAR
PSRM POWER PLANT STRUCTURAL REPAIR MANUAL
PSS PASSENGER SERVICE SYSTEM
PSS PRESSURE SUB SYSTEM (ECU)
PSU PASSENGER SERVICE UNIT
PSW PRESSURE SWITCH
PT POINT
PT TOTAL AIR PRESSURE
PTC POSITIVE TEMPERATURE COEFFICIENT
PTCH PITCH ANGLE
PTCR BODY AXIS PITCH RATE
PTFE TEFLON
PTP PROGRAMMING AND TEST PANEL
PTR PRINTER
PTT PUSH TO TALK
PTU POWER TRANSFER UNIT (HYDRAULIC)
PU POWER UNIT
PUT POWER UP TEST
PW PRATT AND WHITNEY
PWA PRINTED WIRING ASSEMBLY
PWM PULSE WIDTH MODULATOR
PWR SPLY POWER SUPPLY
PWR POWER (ENGINE, ELECTRIC, HYDRAULIC, PNEUMATIC)
Q D QUICK DONNING
Q QUEBEC
QAD RING QUICK ATTACH DETACH RING
QAD QUICK ATTACH DETACH
QAR QUICK ACCESS RECORDER
QDM MAGNETIC DIRECTION TO STATION
QDR TRUE DIRECTION FROM STATION
QEC QUICK ENGINE CHANGE
QFE FIELD ELEVATION ATMOSPHERE PRESSURE
QFF RUNWAY HEADING
QFU RUNWAY HEADING
QNE SEA LEVEL STANDARD ATMOSPHERE PRESSURE (1013.25 HPA)
QNH SEA LEVEL ATMOSPHERE PRESSURE
QTE TRUE DIRECTION TO STATION
QTY QUANTITY
QUJ MAGNETIC DIRECTION FROM STATION
R ROMEO
R / A RADIO ALTIMETER, RADIO ALTITUDE, RADIO HEIGHT
Aircraft Systems - Abbreviations and Acronyms 41
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
R / D REFUEL / DEFUEL
R / H RIGHT HAND
R / I RADIO / INERTIAL
R / I REMOVAL / INSTALLATION
R / L READING LIGHT
R RED
R REVISED (PAGES)
R RIGHT
RA RADIO ALTIMETER, RADIO ALTITUDE, RADIO HEIGHT
RA RESOLUTION ADVISORY (TCAS)
RAC / SB ROTOR ACTIVE CLEARANCE / START BLEED
RAC ROTOR ACTIVE CLEARANCE
RACC ROTOR ACTIVE CLEARANCE CONTROL
RACCS ROTOR ACTIVE CLEARANCE CONTROL SYSTEM
RAD / ALT RADIO ALTIMETER
RAD RADIO
RADAR RADIO DETECTING AND RANGING
RAI RAM AIR INLET (PACK)
RALR RADIO ALTITUDE RATE
RALT RADIO ALTITUDE
RAM RANDOM ACCESS MEMORY
RAO RAM AIR OUTLET (PACK)
RAT RAM AIR TURBINE
RC REPETITIVE CHIME
RCCB REMOTE CONTROL CIRCUIT BREAKER
RCDR RECORDER
RCL RECALL
RCPT RECEPTACLE
RCPTN RECEPTION
RCVR RECEIVER
RCWS ROLL CONTROL WHEEL STEERING
RD RIGHT DISPLAY
RDDMI RADIO DIRECTION DISTANCE MAGNETIC INDICATOR
RDS DRIVE SHAFT HOUSING
REC RECOVERY
RECIRC RECIRCULATION
RECT RECTIFIER
REF REFERENCE
REFUEL REFUELING
REG REGULATOR, REGULATION
REL RELEASE
RET RETURN
RETRD RETRACTED
REV REVERSE
RF RADIO FREQUENCY
RFI REQUEST FOR INFORMATION
RH RIGHT HAND
RHMLG RIGHT HAND MAIN LANDING GEAR
RHS RIGHT HAND SIDE
RI RAM AIR INLET DOOR (PACK)
RIL RETROFIT INFORMATION LETTER
RLS RIGHT LINE SELECT KEY
RLSK RIGHT LINE SELECT KEY
RLY RELAY
RMI RADIO MAGNETIC INDICATOR
RMP RADIO MANAGEMENT PANEL
RMS ROOT MEANS SQUARE
RMU RADIO MAGNETIC UNIT
RMU RADIO MANAGEMENT UNIT
RNAV AREA NAVIGATION
42 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
RNG RANGE
RO RAM AIR OUTLET DOOR (PACK)
ROLL ROLL ANGLE
ROLR BODY AXIS ROLL RATE
ROM READ ONLY MEMORY
ROR RECORD OF REVISIONS
RPLNT RAIN REPELLENT
RPLNT REPELLENT
RPM REVOLUTIONS PER MINUTE
RPT REGULATED PRESSURE TRANSDUCER
RPT REPORT
RPTG REPEATING
RPU RESERVOIR PRESSURIZATION UNIT
RQRD REQUIRED
RSV RESERVE
RSVR RESERVOIR
RT RECEIVER - TRANSMITTER
RT RUDDERTRIM
RTD RESISTANCE TEMPERATURE DETECTOR
RTD RESISTANCE TEMPERATURE DETECTOR (SENSOR)
RTD RESISTANCE TEMPERATURE DEVICE
RTD RESISTIVE THERMAL DEVICE
RTE ROUTE
RTL RUDDER TRAVEL LIMITATION
RTOK RETEST OK, TEST RESULT OK
RTS RETURN TO SEAT
RTV ROOM TEMPERATURE VULCANIZING (MATERIAL)
RUD RUDDER
RUDD RUDDER
RUDT RUDDER TRIM
RVDT ROTARY VARIABLE DIFFERENTIAL TRANSDUCER (TRANSFORMER)
RVR RUNWAY VISUAL RANGE
RVS REVERSE
RWY RUNWAY
RX TORQUE RECEIVER SYNCHRO
S SIERRA
S / C STEP CLIMB
S / D SHUTDOWN
S / D STEP DESCENT
S / F SLATS / FLAPS
S / N SERIAL NUMBER
S / R SERVICE REQUEST
S / V SHOP VISIT
S MINIMUM SLAT RETRACT SPEED
S SERVICING
S SOUTH
SAL SYSTEM ADDRESS LABEL
SAR SEARCH AND RESCUE
SAR SMART AIRBORNE RECORDER
SASPO SOON AS POSSIBLE
SAT STATIC AIR TEMPERATURE
SAV STARTER AIR VALVE
SB SERVICE BULLETIN
SC SELECTED AFT CABIN COMPARTMENT TEMPERATURE
SC SINGLE CHIME
SCAV SCAVENGE
SCN SPECIFICATION CHANGE NOTICE
SCV SOLENOID CONTROLLED VALVE
Aircraft Systems - Abbreviations and Acronyms 43
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
SCV SURGE CONTROL VALVE
SD SHUTDOWN
SD SUPPORTING DATA
SD SYSTEM DISPLAY
SDAC SYSTEM DATA ACQUISITION CONCENTRATOR
SDCU SMOKE DETECTION CONTROL UNIT
SDI SOURCE DATA IDENTIFIER
SDN SHUTDOWN
SDN SYSTEM DESCRIPTION NOTE
SEC FLIGHT CONTROL SECONDARY COMPUTER (FCSC)
SEC SECONDARY
SEC SPOILER ELEVATOR COMPUTER
SECT SECTION
SEL SELECT, SELECTED, SELECTOR
SELCAL SELECTIVE CALLING SYSTEM
SENS SENSITIVITY
SERVO HX SERVO FUEL HEATER
SFC SPECIFIC FUEL CONSUMPTION
SFCC SLAT AND FLAP CONTROL COMPUTER
SFE SELLER FURNISHED EQUIPMENT
SG SPECIFIC GRAVITY
SGU SYMBOL GENERATOR UNIT
SHDBL SHEDDABLE
SHED SHEDDING
SHF SUPER HIGH FREQUENCY
SHP SHAFT HORSE POWER
SIC SYSTEM ISOLATION CONTACTOR
SID STANDARD INSTRUMENT DEPARTURE (PROCEDURE)
SIG SIGNAL
SIL SERVICE INFORMATION LETTER
SIL SPEECH INTERFACE LEVEL
SIM SIMULATION
SLFT SEA LEVEL FEET
SLS SEA LEVEL STANDARD (1013.25 HPA)
SLS SIDE - LOBE SUPPRESSION
SLT SLAT
SM SCHEDULED MAINTENANCE
SM STATUS MATRIX
SMP SOFTWARE MANAGEMENT PLAN
SMP SUMP
SMR SCHEDULED MAINTENANCE REPORT
SN SERIAL NUMBER
SNECMA SOCIÉTÉ NATIONAL D'ETUDE ET DE CONSTRUCTION DE MONTEURS D'AVIATION
SNSG SENSING
SNSR SENSOR
SO SHUT OFF
SOL VLV SOLENOID VALVE
SOL SOLENOID
SOTM SYSTEM OPERATION TRAINING MANUAL
SOV SHUT OFF VALVE
SPD BRK SPEED BRAKE
SPD LIM SPEED LIMIT
SPD SPEED
SPEC SPECIFICATION
SPFL SPRING FAILED
SPI ADDITIONAL PULSE FOR IDENT (ATC)
SPIP IDENT PULSE
SPKR SPEAKER
SPL SOUND PRESSURE LEVEL
SPLR SPOILER
44 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
SPLY SUPPLY
SPM STANDARD PRACTICES MANUAL
SPS SUNDSTRAND POWER SYSTEM
SQ SQUELCH
SR SERVICE REQUEST
SRM STRUCTURAL REPAIR MANUAL
SRS SPEED REFERENCE SYSTEM
SRS SPEED REFERENCE SYSTEM
SSB SINGLE SIDE BAND
SSC SINGLE STROKE CHIME
SSEC STATIC SOURCE ERROR CORRECTION
SSLC SINGLE SHAFT LOAD COMPRESSOR
SSM SIGN STATUS MATRIX
SSR SECONDARY SURVEILLANCE RADAR
SSTU SIDE STICK TRANSDUCER UNIT
SSV SOLENOID SERVO VALVE
STA APU START TIME
STA STATION
STAB STABILIZER, STABILIZATION
STALL BREAKDOWN OF LIFT, SPEED BELOW MINIMUM SPEED
STAR STANDARD TERMINAL ARRIVAL ROUTE
STARTER ENGINE AIR STARTER
STARTG STARTING
STAT INV STATIC INVERTER
STAT STATIC
STBY STANDBY
STD STANDARD
STD STANDARD (ATMOSPHERIC PRESSURE, 1013.25 HPA, TEMPERATURE 15 °C)
STDBY STANDBY
STEER STEERING
STGR STRINGER
STRG STEERING
STS STATUS
STX START OF TEXT
SV SERVO VALVE
SV SHOP VISIT
SV SOLENOID VALVE, SOLENOID CONTROLLED VALVE
SVA STATOR VANE ACTUATOR
SVCE SERVICE
SVR SHOP VISIT RATE
SW SOFTWARE
SW STATUS WORD
SW SWITCH
SWTG SWITCHING
SYM SYMMETRY
SYNC SYNCHRONIZE
SYS SYSTEM
T TANGO
T / C THERMOCOUPLE
T / C TOP OF CLIMB
T / D TOP OF DESCENT
T / E TRAILING EDGE
T / O TAKE OFF
T / R THRUST REVERSER, REVERSE THRUST
T / REV THRUST REVERSER
T TOTAL
T TRUE
T TURN
Aircraft Systems - Abbreviations and Acronyms 45
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
TA TRAFFIC ADVISORY
TA TRAFFIC ALERT (TCAS)
TACAN TACTICAL AIRCRAFT NAVIGATION
TACT TACTICAL
TAPRV TRIM AIR PRESSURE REGULATING VALVE
TAS TRUE AIRSPEED
TAT TOTAL AIR TEMPERATURE
TAT TURN AROUND TIME
TAV TRIM AIR VALVE
TBC TO BE CONFIRMED
TBD TO BE DETERMINED
TC HIGH PRESSURE TURBINE CASE TEMPERATURE
TC THERMO CONNECTOR
TC THERMOCOUPLE
TCAS TRAFFIC COLLISION ALERT SYSTEM OR THREAT-ANALYSIS SYSTEM OR
TCAS TRAFFIC COLLISION AVOIDANCE SYSTEM OR THREAT ALERT AND COLLISION AVOIDANCE SYSTEM
TCC THRUST CONTROL COMPUTER
TCC TURBINE CASE COOLED TEMPERATURE
TCC TURBINE CLEARANCE CONTROL
TCFL THERMO COUPLE FAILED
TCJC THERMOCOUPLE COLD JUNCTION TEMPERATURE
TCT TEMPERATURE CONTROL THERMOSTAT
TCV TEMPERATURE CONTROL VALVE
TD TIME DELAY
TDC TIME DELAY CLOSING
TDO TIME DELAY OPENING
TE TRAILING EDGE
TEC TURBINE EXHAUST CASE
TECU ELECTRONIC CONTROL UNIT INTERNAL TEMPERATURE
TEMP TEMPERATURE
TEO TEMPERATURE ENGINE OIL
TFU TECHNICAL FOLLOW UP
TGB TRANSFER GEARBOX
TGT TARGET
THDG TRUE HEADING
THP HIGH PRESSURE FUEL TEMPERATURE
THR THRUST
THS TRIMMABLE HORIZONTAL STABILIZER
TIPIS TIRE PRESSURE INDICATION SYSTEM
TK GROUND TRACK ANGLE
TK TANK
TK TRACK, TRACK ANGLE
TKE TRACK ANGLE ERROR
TKF TRACK CHECK FAILURE
TLA THROTTLE LEVER ANGLE
TLA THRUST LEVER ANGLE
TLR THRUST LEVER RESOLVER (ANGLE)
TLT TEMPERATURE LIMITATION THERMOSTAT
TLU TRAVEL LIMIT UNIT (RUDDER)
TM TORQUE MOTOR
TM TURBOMECA
TMC TORQUE MOTOR CURRENT
TMR TIMER
TMR TIMER RESET (PB)
TN NACELLE TEMPERATURE
TNR TN REFERENCE
TO / GA TAKE OFF / GO AROUND
TO TAKE OFF
TOBI TANGENTIAL OUTBOARD INJECTOR
TOGA TAKE OFF / GO AROUND
46 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
TOGW TAKE OFF GROSS WEIGHT
TORA TAKE OFF RUN AVAILABLE
TOT TOTAL
TOW TAKE OFF WEIGHT
TOW TOWING
TP PACK OUTLET TEMPERATURE
TP TURN POINT
TPIC TIRE PRESSURE INDICATING COMPUTER
TPIS TIRE PRESSURE INDICATING SYSTEM
TPO PRE COOLER OUTLET TEMP
TPT TRANSFER PRESSURE TRANSDUCER
TR THRUST REVERSER, REVERSE THRUST
TR TEMPORARY REVISION (NUMBER)
TR TRANSFORMER RECTIFIER
TR TURN RADIUS
TRA THROTTLE RESOLVER ANGLE
TRANS TRANSITION
TRANSF TRANSFER
TRC THRUST RATING COMPUTER
TRDV THRUST REVERSER DIRECTIONAL VALVE
TRF TURBINE REAR FRAME
TRK TRACK
TRK TRACK, TRACK ANGLE
TROPO TROPOPAUSE
TRP THRUST RATE PANEL / THRUST RATING PANEL
TRP TOTAL RADIATED POWER
TRPV THRUST REVERSER PRESSURIZING VALVE
TRU TRANSFORMER RECTIFIER UNIT
TRV TRAVEL
TSH TROUBLE SHOOTING HANDBOOK
TSI TIME SINCE INSTALLATION (HOURS)
TSM TROUBLE SHOOTING MANUAL
TSN TIME SINCE NEW (HOURS)
TSO TECHNICAL STANDARD ORDER
TSO TIME SINCE OVERHAUL
TTG TIME TO GO
TTK TRIM TANK
TTS TOTAL TECHNICAL SUPPORT
TURB TURBINE
TURB TURBULENCE, TURBULENT
TW WATER EXTRACT TEMP (PACK)
TWR CONTROL TOWER
TX TORQUE TRANSMITTER SYNCHRO
U UNIFORM
U / C UNDER CARRIAGE
U / FULL UNDER FULL
U / J UNIVERSAL JOINT
U / S UNSERVICEABLE
UAC UPPER AREA CONTROL CENTRE
UART UNIVERSAL ASYNCHRONOUS RECEIVER / TRANSMITTER
UDC UPPER DECK CARGO
UDL UNIT DETAIL LISTING
UER UNSCHEDULED ENGINE REMOVAL
UF UNDER FREQUENCY
UF UPLINK FORMAT
UFD UNIT FAULT DATA
UHF ULTRA HIGH FREQUENCY
ULB UNDER WATER LOCATOR BEACON
Aircraft Systems - Abbreviations and Acronyms 47
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
ULD UNIT LOADING DEVICE
UNBAL UNBALANCE
UNCPLG UNCOUPLING
UNCRCTD UNCORRECTED
UND UNDER
UNIV UNIVERSAL
UNLK UNLOCK
UNLKD UNLOCKED
UNRGLTD UNREGULATED
UNSD UNUSED
UP UNIT SEPARATOR
UP UPPER
UPD UPDATE
UPLK UPLOCK
UPR UPPER
UR UTILIZATION RATE
US ULTRA SONIC
US UNDER SPEED
US UNITED STATES
USA UNITED STATES OF AMERICA
USB UPPER SIDE BAND
USD US DOLLAR
USG US GALLON
USGAL US GALLON
USR. UNDER SPEED RELAY
USS UNDER SPEED SENSOR
UTA UPPER CONTROL AREA
UTC UNIVERSAL TIME COORDINATED (REPLACES FORMER GMT)
UUT UNIT UNDER TEST
UV ULTRA VIOLET
UV UNDER VOLTAGE
UVEROM ULTRA VIOLET ERASABLE READ ONLY MEMORY
UWY UPPER AIRWAY
V VICTOR
V - BARS TYPE OF FLIGHT DIRECTOR INDICATOR POINTERS
V / S VERTICAL SPEED
V SPEED
V VALVE
V1 CRITICAL ENGINE FAILURE SPEED
V2 TAKE OFF SAFETY SPEED
V3 FLAP RETRACTION SPEED
V4 SLAT RETRACTION SPEED
VA CABIN TEMP AFT
VAC VACUUM
VAC VOLTAGE, ALTERNATE CURRENT
VACBI VIDEO AND COMPUTER BASED INSTRUCTION (AIRBUS)
VACC VERTICAL ACCELERATION
VB VALVE BLOCK
VB VIBRATION
VB1 N1 VIBRATION ENG
VB2 N2 VIBRATION ENG
VBS VERTICAL BEAM SENSOR
VBV VARIABLE BLEED VALVE
VBV VARIABLE BYPASS VALVE
VBVF VARIABLE BLEED FEEDBACK
VC CALIBRATED AIRSPEED
VC DESIGN CRUISING SPEED
VCTREND AIRSPEED TENDENCY
48 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
VDC VOLTAGE, DIRECT CURRENT
VDEV VERTICAL DEVIATION
VEL VELOCITY
VENT VENTILATION
VERT VERTICAL
VF CABIN TEMPERATURE FORWARD
VFE MAXI VELOCITY FLAPS EXTENDED SPEED
VFEN VFE NEXT, PREDICTIVE VFE AT NEXT FLAP / SLAT POSITION
VFR VISUAL FLIGHT RULES
VFTO FINAL TAKE OFF SPEED
VG VERTICAL GYRO
VHF VERY HIGH FREQUENCY
VHV VERY HIGH VOLTAGE
VIB VIBRATION
VISV VARIABLE INLET STATOR VANE
VLE MAXIMUM LANDING GEAR EXTENDED SPEED
VLF VERY LOW FREQUENCY
VLS LOWEST SELECTABLE SPEED
VLV VALVE
VM RECOMMENDED MANEUVERING SPEED
VM VOLTMETER
VMAN MANEUVERING SPEED
VMAX MAXIMUM OPERATING SPEED
VMIN MINIMUM OPERATING SPEED
VMO MAXIMUM OPERATING SPEED
VNAV VERTICAL NAVIGATION
VOL VOLUME
VOR VERY HIGH FREQUENCY OMNI DIRECTIONAL RANGE
VOR-D VOR - DME
VORTAC VOR - TACAN
VPSN VALVE POSITION
VR ROTATION SPEED
VREF LANDING REFERENCE SPEED
VRTG BODY NORMAL ACCELERATION
VS VERTICAL SPEED
VS STALLING SPEED
VSC VACUUM SYSTEM CONTROLLER
VSCB CABIN VERTICAL SPEED
VSI VERTICAL SPEED INDICATOR
VSL VERTICAL SPEED LIMIT
VSS STICK SHAKER SPEED
VSV COMPRESSOR STATOR VANE ACTUATOR
VSV VARIABLE STATOR VANE
VSW STALL WARNING SPEED
VSWR VOLTAGE STANDING WAVE RATIO
VV VICE VERSA
VW CABIN TEMP
W WHISKY
W WEIGHT
W WEST
W WHITE
W WIRE
WAF WRAP - AROUND FAILURES
WAI WING ANTI-ICE
WARN WARNING
WAYPOINT EN ROUTE NAVIGATION FIX
WB BLEED AIR FLOW
WBC WEIGHT AND BALANCE COMPUTER
Aircraft Systems - Abbreviations and Acronyms 49
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
WBS WEIGHT AND BALANCE SYSTEM
WD WARNING DISPLAY
WD WIND DIRECTION TRUE
WF WEIGHT FUEL
WFM WEIGHT OF FUEL METERED, FUEL MASS FLOW
WFQ TOTAL FUEL QUANTITY
WGD WINDSHIELD GUIDANCE DISPLAY
WHC WINDOW HEAT COMPUTER
WIPCU WATER ICE PROTECTION CONTROL UNIT
WL WATER LINE
WLDP WARNING LIGHT DISPLAY PANEL
WNDW WINDOW
WOW WEIGHT ON WHEELS (SIGNAL)
WP WAYPOINT
WPT WAYPOINT
WR WEATHER RADAR
WS WIND SPEED
WSHLD WINDSHIELD
WT WEIGHT
WTB WING TIP BRAKE
WX WEATHER MODE (ND)
WXR WEATHER RADAR
WXR WEATHER RADAR TRANSCEIVER
X X-RAY
X LONGITUDINAL REFERENCE AXIS
X TRANS
XARM CROSS ARM
XBAR CROSSBAR
XBLEED CROSS BLEED
XCEIVER TRANSCEIVER
XCF CROSS CHECK FAILURE
XCVR TRANSCEIVER
XDCR TRANSDUCER
XFEED CROSS FEED
XFER TRANSFER
XFMR TRANSFORMER
XFR TRANSFER
XLINE CROSS LINE
XLTR TRANSLATOR
XMITTER TRANSMITTER
XMSN TRANSMISSION
XMTR TRANSMITTER
XPDR TRANSPONDER
XPONDER TRANSPONDER
XREF CROSS REFERENCE
XTAL CRYSTAL
XTALK CROSS TALK
XTE CROSS TRACK ERROR
XTK CROSS TRACK
XTK CROSS TRACK DEVIATION
XTKE CROSS TRACK ERROR
XVALVE CROSS VALVE
Y YANKEE
Y / N YES / NO
Y HORIZONTAL REFERENCE AXIS
Y YELLOW
Y-ARM LATERAL ARM
50 Aircraft Systems - Abbreviations and Acronyms
Prof. Dr. Dieter Scholz fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU
YC ECONOMY CLASS, TOURIST CLASS
YCF ECONOMY CLASS FRONT
YCR ECONOMY CLASS REAR
YD YAW DAMPER
YEL YELLOW
YES YANKEE ESCAPE SYSTEM
Z ZULU
Z ALTITUDE
Z INTERIOR PANEL
Z TIME (UTC)
Z VERTICAL REFERENCE AXIS
Z ZONE
ZA PRESSURE ALTITUDE
ZAJB ZONE AUDIO JUNCTION BOX
Z-ARM VERTICAL ARM
ZC ZONE CONTROLLER
ZCB CABIN ALTITUDE
ZD ZENER DIODE
ZFCG ZERO FUEL CENTER OF GRAVITY
ZFW ZERO FUEL WEIGHT
ZLD LANDING ELEVATION
ZOTC ZONE TEMPERATURE CONTROLLER
ZP PRESSURE ALTITUDE
ZPI INDICATED PRESSURE ALTITUDE
ZULU ZULU TIME = UTC