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ABBREVIATIONS AND ACRONYMS

ABBREVIATION DESCRIPTION° Degree

°C Degree Celsius

°F Degree Fahrenheit

  Liter

A Ampere

A/C Aircraft

A/I Anti-IceABM Auto Brake Control Module

ABV Auxiliary Power-Unit Bleed-Valve

AC Advisory Circular

ACARS Aircraft Communication Addressing andReporting System

ACE Actuator Control Electronics

ACMP Alternating-Current Motor-Driven Pump

ACN Aircraft Classification Number

ACP Audio Control Panel

ACT Altitude Compensated Tilt

ADA Air Data Application

ADC Air Data Computer

ADF Automatic Direction Finder

ADI Attitude Director Indicator

ADS Air Data SystemADSP Air Data Smart Probe

AEO All Engines Operative

AFCS Automatic-Flight Control System

AFE Above Field Elevation

AFM Airplane Flight Manual

AFU Artificial Feel Unit

AGL Above Ground LevelAICC Auxiliary Integrated Control-Center

AIOP Actuator Input-Output Processor

AIP Aeronautical Information Publication

ALD Actual Landing Distance

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

ALT Altitude

AMM Aircraft Maintenance ManualAMS Air Management System

ANAC Agência Nacional de Aviação Civil

ANR Automatic Navigation Realignment

AOA Angle of Attack

AOM Airplane Operations Manual

AP Automatic Pilot

APM Aircraft Personality ModuleAPP Approach

APPR Approach

APR Approach

APU Auxiliary Power Unit

ARINC Aeronautical Radio Incorporated

ARM Armed

ASCB Avionics Standard-Communication Bus

ASEL Altitude Preselect

ASTM American Society of Testing Material

AT Autothrottle

ATA Air Transport Association of America

ATC Air Traffic Control

ATS Air Turbine Starter

ATTCS Automatic Takeoff-Thrust Control-System

ATTND AttendantAUTO Automatic

AVAIL Available

AZFW Actual Zero Fuel Weight

B-RNAV Basic Required Navigation

BARO Barometric Setting

BATT Battery

BC Back CourseBCM Brake Control Module

BEW Basic Empty Weight

BFO Beat Frequency Oscillator

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

BIT Built-in Test

BOD Bottom of DescentBRG Bearing

BRT Bright

BTC Bus Tie Contactor

CAB Cabin

CAFM Computerized Airplane Flight Manual

CAGE Commercial and Government Entity

CAS Calibrated AirspeedCAT I Category I Operation

CAT II Category II Operation

CAT III Category III Operation

CB Circuit Breaker

CCD Cursor Control Device

CDL Configuration Deviation List

CFR Code of Federal Regulations

CG Center of Gravity

CGD Corrected Ground Distance

CH Channel

CKPT Cockpit

CLR Clear

cm Centimeter

CMC Central Maintenance Computer

CMF Communications Management FunctionCMS Configuration Management System

COMM Communications

CON Continuous

CPC Cabin Pressure Controller

CPCS Cabin Pressure Control-System

CRS Course

CRZ CruiseCSS Cabin Surveillance System

CTRL Control

CVR Cockpit Voice Recorder

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

D-ROT De-rotation

DB DatabaseDC Direct Current

DDPM Dispatch Deviation Procedures Manual

DET Detector

DGRAD Degraded

DH Decision Height

DIM Dimmer

DLK DatalinkDME Distance Measuring Equipment

DMU Data-Loader Management Unit

DN Down

DO RTCA Document

DOW Dry Operating Weight

DR Dead Reckoning

DU Display Unit

DVDR Digital Voice-Data Recorder

E-BAY Electronic Bay

EADI Electronic Attitude Director Indicator

EBV Engine Bleed Valve

ECAFM Electronic Computerized AFM

ECEF Earth-Centered Earth-Fixed

ECL Electronic Checklist

ECS Environmental Control SystemEDP Engine Driven Pump

EDS Electronic Display System

EGPWM Enhanced Ground-Proximity Warning-Module

EGPWS Enhanced Ground-Proximity Warning-System

EGT Exhaust Gas Temperature

EHSI Electronic Horizontal Situation-Indicator

EICAS Engine Indication and Crew Alerting SystemEICC Emergency Integrated Control-Center

ELPU Emergency Lights Power Unit

ELT Emergency Locator Transmitter

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

EMERG Emergency

ENG EngineEPNL Effective Perceived Noise Level

EPU Estimated Position Uncertainty

ESS Essential

ETA Estimated Time of Arrival

ETC Elevator Thrust Compensation

ETE Estimated Time Enroute

ETP Equal Time PointFAA Federal Aviation Authority

FADEC Full-Authority Digital Electronic-Control

FAF Final Approach Fix

FAP Flight Attendant Panel

FAR Federal Aviation Regulations

FAWP Final Approach Waypoint

FBW Fly-by-wire

FCM Flight Control Module

FCOC Fuel Cooled Oil Cooler

FCP Flight Control Panel

FCU Fuel Conditioning Unit

FCV Flow Control Valve

FD Flight Director

FDR Flight Data Recorder

FGCS Flight Guidance Control SystemFIM Fault Isolation Manual

FIREX Fire Extinguisher

FLC Flight Level Change

FLCH Flight Level Change

FLEX Flexible

FMA Flight Mode Annunciator

FMS Flight Management SystemFMU Fuel Metering Unit

FOM Figure of Merit

FPA Flight Path Angle

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

FPL Flight Plan

FPR Flight Path ReferenceFSTN Fasten

ft Foot

ft/min Foot per Minute

ft3 Cubic Foot

FWD Forward

g Gravity Acceleration

G/A Go-AroundGA Go Around

GCU Generator Control Unit

GD Ground Distance

GEN Generator

GMAP Ground Map

GND Ground

GNSS Global Navigation Satellite System

GP Guidance Panel

GPS Global Positioning System

GPU Ground Power Unit

GPWS Ground-Proximity Warning System

GS Glide Slope

h Hour

HDG Heading

HDOP Horizontal Dilution of PrecisionHDPH Headphone

HF High Frequency

HGS Head-up Guidance System

HI High

HP High Pressure

hPa Hectopascal

HPU High Pressure UnitHS-ACE Horizontal-Stabilizer Actuator-Control

Electronics

HSA Horizontal Stabilizer Actuator

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

HSI Horizontal Situation Indicator

HYD HydraulicHz Hertz

I/O Input/Output

IAF Initial Approach Fix

IAS Indicated Air Speed

IATA International Air Transport Association

IBIT Inflight Built In Test

ICAO International Civil Aviation OrganizationICC Integrated Control-Center

ID Identification

IDG Integrated Drive Generator

IESS Integrated Electronic Standby System

IFR Instrument Flight Reference

IGN Ignition

ILS Instrument Landing System

in Inch

in3 Cubic Inch

INBD Inboard

inHg Inch of Mercury

INHIB Inhibition

INIT Initialization

INOP Inoperative

INPH InterphoneINT Initialization

IRS Inertial Reference System

IRU Inertial Reference Unit

ISA International Standard Atmosphere

ITT Interstage Turbine Temperature

IU Index Unit

IU/lb index Unit per PoundKCAS Calibrated Airspeed in Knots

kg Kilogram

kg/m2 Kilogram per Square Meter

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

KIAS Indicated Airspeed in Knots

km Kilometerkm/h Kilometer per Hour

kPa Kilopascal

KPH Kilograms per Hour

kt Knot

kVA Kilovolt-Ampere

LAT Latitude

LAV Lavatorylb Pound

lb/ft2 Pound per Square Foot

lb/US gal Pound per Gallon

lb.in Pound Inch

lbf Pound Force

LCD Liquid-Crystal Display

LDA Localizer Directional Aid

LDG Landing Gear

LED Light-Emitting Diode

LEMAC Leading Hedge Aerodynamic Chord

LFE Landing Field Elevation

LG Landing Gear

LH Left-Hand

LICC Left Integrated Control-Center

LIM Limited ThrustLNAV Lateral Navigation

LO Low

LOC Localizer

LOC-BC Localizer-Back Course

LON Longitude

LP Low Pressure

LRC Long Range CruiseLRM Line Replaceable Module

LRU Line Replaceable Unit

LSA Low Speed Awareness

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

LSK Line Select Key

LT LightLVTO Low Visibility Takeoff

m Meter

m3 Cubic Meter

MAC Mean Aerodynamic Chord

MAP Multiple Alarm Panel

MAU Modular Avionics Unit

MAX MaximumMaxAT Maximum Assumed Temperature

mbar Milibar

MCDU Multifunction Control Display Unit

MDA Minimum Descent Altitude

MEA Minimum Enroute Altitude

MEL Minimum Equipment List

MEW Manufacture Empty Weight

MFD Multi-Function Display

MHz Megahertz

MIC Microphone

MID Middle

min Minute

MLG Main Landing Gear

MLS Microwave Landing System

MLW Maximum Landing Weightmm Millimeter

MMEL Master Minimum Equipment List

Mmo Maximum Mach Operation

MOW Maximum Design Operating Weight

mph Mile per Hour

MRC Modular Radio Cabinet

MRW Maximum Ramp WeightMSA Minimum Safety Altitude

MSL Mean Sea Level

MTOW Maximum Takeoff Weight

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

MZFW Maximum Zero Fuel Weight

N1 Fan Rotor SpeedN2 Core Rotor Speed

NAD-83 North American Datum 1983

NAS National Airspace System

NAV Navigation

NAVCOM Navigation & Communication

NBPT No-Break Power Transfer

NDB Non-Directional BeaconNIC Network Interface Controller

NLG Nose Landing Gear

NM Nautical Miles

NOTAM Notice to Airmen

NPRV Negative Pressure Relief Valve

OAT Outside Air Temperature

OBV Operability Bleed Valve

ODS Overheat Detection System

OEI One Engine Inoperative

OEW Operational Empty Weight

OFV Outflow Valve

OUTBD Outboard

OVHT Overheat

OVRD Override

OVSP OverspeedOWE Overwing Emergency Exit

OXY Oxygen

P-ACE Primary Actuator Control Electronics

P-RNAV Precision Required Navigation

PA Passenger Address

PAX Passenger

PBE Protective Breathing EquipmentPBIT Power Up Built in Test

PC Personal Computer

PCN Pavement Classification Number

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

PCU Power Control Unit

PDU Power Drive UnitPED Portable Electronic Device

Perf Performance

PF Pilot Flying

PFD Primary Flight Display

PIT Pitch

PMA Permanent Magnet Alternator

POS PositionPPH Pounds per Hour

PPOS Present Position

PPU Power Push Unit

PREV Previous

PRN Pseudo-Random Noise

PSEM Proximity Sensor Electronic Module

psi Pounds per Square Inch

psid Pound per Square Inch Differential

psig Pound per Square Inch Gauge

PSU Passenger Service Unit

PTT Press To Transmit

PTU Power Transfer Unit

PWR Power

QFE Question Field Elevation

QNH Local Altimeter SettingQRH Quick Reference Handbook

RA Resolution Advisory

RAD Radio

RAIM Receiver Autonomous Integrity Monitor

RALT Radio Altitude

RAMP Reliability Analysis and Motoring Program

RAT Ram Air TurbineRCT Rain Echo Attenuation

REACT Rain Echo Attenuation CompensationTechnique

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

RECIRC Recirculation

REF. ReferenceRETD Retard

REV Reverse

RH Right-Hand

RICC Right Integrated Control-Center

RIPS Recorder Independent Power Supply

RLOUT Roll Out

RNAV Area Navigation SystemRNP Required Navigation Performance

rpm Revolutions per Minute

RSV Reserve

RTA Receiver/Transmitter Antenna

RTO Rejected Takeoff

RVSM Reduced Vertical Separation Minimum

RWY Runway

s Second

S-ACE Spoiler Actuator-Control Electronics

SAD Still Air Distance

SAI Slat Anti-Ice

SAT Static Air Temperature

SCV Starter Control Valve

SDF Simplified Directional Facility

SECT SectorSEL Selector

SELCAL Selective Call

SF-ACE Slat/Flap Actuator Control Electronics

SFCL Slat/Flap Control Lever

SID Standard Instrument Departures

SL Sea Level

SMKG SmokingSOV Shutoff Valve

SPD Speed

SPDA Secondary Power Distribution Assembly

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

SPKR Speaker

SPS Stall Protection SystemSSPC Solid State Power Controller

SSR Secondary Surveillance Radar

STAB Stabilizer

STAR Standard Instrument Arrivals

STBY Standby

STD Standard

SVC ServiceSW Switch

SYS System

T/O Takeoff

T2 Fan Inlet Temperature

TA Traffic Advisory

TA/RA Traffic Advisory/ Resolution Advisory

TAS True Airspeed

TAT Total Air Temperature

TCAS Traffic Alert and Collision Avoidance System

TCS Touch Control Steering

TDS Takeoff Data Set

TEMP Temperature

TERM Terminal

TGL Temporary Guidance Leaflet

TGT TargetTLA Thrust Lever Angle

TMS Thrust Management System

TO Takeoff

TOC Top of Climb

TOD Top of Descent

TOGA Takeoff/Go Around

TRS Thrust Rating SelectorTRU Transformer Rectifier Unit

ULD Unfactored Landing Distance

US gal Gallon

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

DEFINITION OF TERMS

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ABBREVIATION DESCRIPTION

UTC Universal Time Coordinated

V VoltV1   Takeoff Decision Speed

V2   Takeoff Safety Speed

VA   Design Maneuvering Speed

VAC   Approach Climb Speed

VALT Vertical Altitude

VAPP   Approach Speed

VAR VariableVARM Vertical ARM

VASEL Vertical Altitude Select

VDC Volt Direct Current

VDOP Vertical Dilution of Precision

VDR VHF Data Radio

VEF   Critical Engine Failure Speed

VFE   Maximum Flaps Extended Speed

VFLCH Vertical Flight Level Change

VFR Visual Flight Reference

VFS   Final Segment Speed

VGP VNAV Glide Path

VHF Very High Frequency

VLE   Maximum Landing Gear Extended Speed

VLO   Maximum Landing Gear Operating Speed

VMC Visual Meteorological ConditionsVMCA   Air Minimum Control Speed

VMCG   Ground Minimum Control Speed

VMCL   Minimum Control Speed During Landing

VMO   Maximum Operating Speed

VNAV Vertical Navigation

VOR VHF Omnidirectional Range

VOR/LOC VOR LocalizerVPATH Vertical Path

VR   Rotation Speed

Vref Reference Speed

AIRPLANE

OPERATIONS

MANUAL

GENERAL INFORMATION AND

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ABBREVIATION DESCRIPTION

VREFXX   Landing Reference Speed associated to the

flap setting XXVS Vertical Speed

VSI Vertical Speed Indicator

VTA Vertical Track Alert

WGS-84 World Geodetic System 1984

WML Windmilling

WOW Weight-on-Wheels

WRN WarningWSHR Windshear

WX Weather Radar

XBLEED Cross Bleed

XCHECK Cross Check

XFEED Cross Feed

XPDR Transponder

YD Yaw Damper

AIRPLANE

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MANUAL

GENERAL INFORMATION AND

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