university of applied sciences gegr. 1970 fachhochschule hamburg FACHBEREICH FAHRZEUGTECHNIK UND FLUGZEUGBAU Aircraft Systems Abbreviations and Acronyms Prof. Dr.-Ing. Dieter Scholz, MSME ---------------------------------------------------------------- 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 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 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 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 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 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 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 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) 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 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 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 TÉLÉPHONIQUE 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 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 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 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 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 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 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 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 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 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 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 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 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 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 F FUEL F.DES FINAL DESCENT FAA FEDERAL AVIATION ADMINISTRATION (USA) FAA FEDERAL AVIATION AGENCY 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 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 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 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 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 IDG CONTROL VALVES 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 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 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 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 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 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 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 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 P.M. POST MERIDIEM 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 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 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 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 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 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 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 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 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 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 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 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 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 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