ATPL Acronyms Must Know

ADF

Automatic Direction Finder

ADIRS

Air Data Inertial Reference System

AFCS

Automatic Flight Control System

AFM

Aircraft Flight Manual

AFR

Airways Facilities Requirement

AFTN

Aeronautical Fixed Telecommunication Network

AGL

Above Ground Level

AHRS

Attitude and Heading Reference System

AIP

Aeronautical Information Publication

AIS

Aeronautical Information Service

ALPA

Air Line Pilots Association

ALT

Altitude

AMC

Acceptable Means of Compliance

AME

Aeromedical Examiner

AMHS

Aeronautical Message Handling System

ANS

Air Navigation Services

AOA

Angle of Attack

AOC

Air Operator Certificate

AOM

Aircraft Operating Manual

AP

Autopilot

APU

Auxiliary Power Unit

ARINC

Aeronautical Radio Incorporated

ASDA

Accelerate-Stop Distance Available

ASI

Airspeed Indicator

ATC

Air Traffic Control

ATCO

Air Traffic Control Officer

ATIS

Automatic Terminal Information Service

ATM

Air Traffic Management

ATS

Air Traffic Services

ATZ

Aerodrome Traffic Zone

AWOPS

All Weather Operations

AWY

Airway

BADA

Base of Aircraft Data

BARO

Virutal Barometric Altimeter Setting

CAS

Calibrated Airspeed

CAT

Category / Clear Air Turbulence

CFIT

Controlled Flight Into Terrain

CG

Centre of Gravity

CHT

Cylinder Head Temperature

CNS

Communication, Navigation, Surveillance

COM

Communications

CPDLC

Controller Pilot Data Link Communication

CRM

Crew Resource Management

CS

Certification Specifications

CTA

Control Area

CTR

Control Zone

CVR

Cockpit Voice Recorder

D-ATIS

Digital Automatic Terminal Information Service

DA

Decision Altitude

DH

Decision Height

DME

Distance Measuring Equipment

DOC

Document

EASA

European Union Aviation Safety Agency

ECAM

Electronic Centralised Aircraft Monitoring

EFB

Electronic Flight Bag

EFIS

Electronic Flight Instrument System

EGPWS

Enhanced Ground Proximity Warning System

ELT

Emergency Locator Transmitter

ETA

Estimated Time of Arrival

ETD

Estimated Time of Departure

ETOPS

Extended Twin Operations

EPR

Engine Pressure Ratio

EPU

Emergency Power Unit

EUROCONTROL

European Organisation for the Safety of Air Navigation

FANS

Future Air Navigation System

FAP

Final Approach Point

FAR

Federal Aviation Regulation

FDR

Flight Data Recorder

FDP

Flight Duty Period

FIR

Flight Information Region

FIS

Flight Information Service

FMS

Flight Management System

FOD

Foreign Object Damage

FO

First Officer

FPAP

Final Precision Approach Point

FPL

Flight Plan

FPS

Flight Planning System

FRMS

Fatigue Risk Management System

FSS

Flight Service Station

FTL

Flight Time Limitations

FTOM

Flight and Technical Operations Manual

FTS

Fuel Tank Safety

GA

General Aviation

GNSS

Global Navigation Satellite System

GPWS

Ground Proximity Warning System

GPS

Global Positioning System

GSM

Ground Speed Mini

HPL

Human Performance and Limitations

HPA

High Performance Aircraft

HPA

Hectopascal

HPA

Hours Per Annum

IAF

Initial Approach Fix

IAS

Indicated Airspeed

ICAO

International Civil Aviation Organization

IFR

Instrument Flight Rules

ILS

Instrument Landing System

IMC

Instrument Meteorological Conditions

INS

Inertial Navigation System

ISA

International Standard Atmosphere

KIAS

Knots Indicated Airspeed