Appendix 3.

Abbreviations/Acronyms

As used in this manual, the following abbreviations/acronyms have the meanings indicated.

 

Abbreviation/Acronym

Meaning

AAWU

Alaskan Aviation Weather Unit

AC

Advisory Circular

ACAR

Aircraft Communications Addressing and Reporting System

ADDS

Aviation Digital Data Service

ADCUS

Advise Customs

ADF

Automatic Direction Finder

AFB

Air Force Base

AFCS

Automatic Flight Control System

A/FD

Airport/Facility Directory

AFM

Aircraft Flight Manual

AFSS

Automated Flight Service Station

AIM

Aeronautical Information Manual

AIRMET

Airmen's Meteorological Information

ALD

Available Landing Distance

ALS

Approach Light Systems

AMSL

Above Mean Sea Level

ANP

Actual Navigation Performance

AOCC

Airline Operations Control Center

AP

Autopilot System

ARFF IC

Aircraft Rescue and Fire Fighting Incident Commander

ARINC

Aeronautical Radio Incorporated

ARO

Airport Reservations Office

ARSA

Airport Radar Service Area

ARSR

Air Route Surveillance Radar

ARTCC

Air Route Traffic Control Center

ARTS

Automated Radar Terminal System

ASOS

Automated Surface Observing System

ASR

Airport Surveillance Radar

ATC

Air Traffic Control

ATCRBS

Air Traffic Control Radar Beacon System

ATCT

Airport Traffic Control Tower

ATD

Along Track (Straight-line) Distance

ATIS

Automatic Terminal Information Service

ATT

Attitude Retention System

AWC

Aviation Weather Center

AWOS

Automated Weather Observing System

AWW

Severe Weather Forecast Alert

BBS

Bulletin Board System

BC

Back Course

C/A

Coarse Acquisition

CAT

Clear Air Turbulence

CD

Controller Display

CDI

Course Deviation Indicator

CERAP

Combined Center/RAPCON

CFA

Controlled Firing Area

CFR

Code of Federal Regulations

CTAF

Common Traffic Advisory Frequency

CVFP

Charted Visual Flight Procedure

CVRS

Computerized Voice Reservation System

CWA

Center Weather Advisory

CWSU

Center Weather Service Unit

DA

Decision Altitude

DCA

Ronald Reagan Washington National Airport

DCP

Data Collection Package

DF

Direction Finder

DH

Decision Height

DME

Distance Measuring Equipment

DME/N

Standard DME

DME/P

Precision DME

DOD

Department of Defense

DP

Instrument Departure Procedure

DPU

Data Processor Unit

DRT Diversion Recovery Tool

DUATS

Direct User Access Terminal System

DVA

Diverse Vector Area

DVFR

Defense Visual Flight Rules

DVRSN Diversion

EFAS

En Route Flight Advisory Service

ELT

Emergency Locator Transmitter

EPE

Estimate of Position Error

ESV

Expanded Service Volume

ETA

Estimated Time of Arrival

ETD

Estimated Time of Departure

ETE

Estimated Time En Route

EWINS

Enhanced Weather Information System

EWR

Newark International Airport

FA

Area Forecast

FAA

Federal Aviation Administration

FAF

Final Approach Fix

FAWP

Final Approach Waypoint

FB

Fly-by

FCC

Federal Communications Commission

FD

Flight Director System

FDC

Flight Data Center

FIR

Flight Information Region

FISDL

Flight Information Services Data Link

FLIP

Flight Information Publication

FMS

Flight Management System

FMSP

Flight Management System Procedure

FO

Fly-over

FPNM

Feet Per Nautical Mile

FSDO

Flight Standards District Office

FSS

Flight Service Station

GBAS

Ground Based Augmentation System

GEO

Geostationary Satellite

GLS

GNSS Landing System

GNSS

Global Navigation Satellite System

GNSSP

Global Navigation Satellite System Panel

GPS

Global Positioning System

GRI

Group Repetition Interval

GSD

Geographical Situation Display

GUS

Ground Uplink Station

HAT

Height Above Touchdown

HDTA

High Density Traffic Airports

HIRL

High Intensity Runway Lights

HIWAS

Hazardous Inflight Weather Advisory Service

HRR

Helicopter Rapid Refueling Procedures

Hz

Hertz

IAF

Initial Approach Fix

IAP

Instrument Approach Procedure

IAS

Indicated Air Speed

IAWP

Initial Approach Waypoint

ICAO

International Civil Aviation Organization

IF

Intermediate Fix

IFIM

International Flight Information Manual

IFR

Instrument Flight Rules

ILS

Instrument Landing System

IM

Inner Marker

IMC

Instrument Meteorological Conditions

INS

Inertial Navigation System

IOC

Initial Operational Capability

IR

IFR Military Training Route

ITWS

Integrated Terminal Weather System

JFK

John F. Kennedy International Airport

kHz

Kilohertz

LAA

Local Airport Advisory

LAAS

Local Area Augmentation System

LAHSO

Land and Hold Short Operations

LAWRS

Limited Aviation Weather Reporting Station

LDA

Localizer Type Directional Aid

LGA

LaGuardia Airport

LIRL

Low Intensity Runway Lights

LLWAS

Low Level Wind Shear Alert System

LNAV

Lateral Navigation

LOC

Localizer

LOP

Line-of-position

LORAN

Long Range Navigation System

MAHWP

Missed Approach Holding Waypoint

MAP

Missed Approach Point

MAWP

Missed Approach Waypoint

MDA

Minimum Descent Altitude

MEA

Minimum En Route Altitude

METAR

Aviation Routine Weather Report

MHz

Megahertz

MIRL

Medium Intensity Runway Lights

MLS

Microwave Landing System

MM

Middle Marker

MOA

Military Operations Area

MOCA

Minimum Obstruction Clearance Altitude

MSA

Minimum Safe Altitude

MSAW

Minimum Safe Altitude Warning

MSL

Mean Sea Level

MTI

Moving Target Indicator

MTOS

Mountain Obscuration

MTR

Military Training Route

MVA

Minimum Vectoring Altitude

MWO

Meteorological Watch Office

NACO

National Aeronautical Charting Office

NAS

National Airspace System

NASA

National Aeronautics and Space Administration

NAVAID

Navigational Aid

NCWF

National Convective Weather Forecast

NDB

Nondirectional Radio Beacon

NEXRAD

Next Generation Weather Radar

NFDC

National Flight Data Center

NIDS

National Institute for Discovery Sciences

NIMA

National Imagery and Mapping Agency

NM

Nautical Mile

NMAC

Near Midair Collision

NOAA

National Oceanic and Atmospheric Administration

NOPAC

North Pacific

NoPT

No Procedure Turn Required

NOTAM

Notice to Airmen

NSA

National Security Area

NSW

No Significant Weather

NTAP

Notices to Airmen Publication

NTSB

National Transportation Safety Board

NTZ

No Transgression Zone

NWS

National Weather Service

OAT

Outside Air Temperature

OBS

Omni-bearing Selector

OM

Outer Marker

ORD

Chicago O'Hare International Airport

PAPI

Precision Approach Path Indicator

PAR

Precision Approach Radar

PAR

Preferred Arrival Route

PC

Personal Computer

P/CG

Pilot/Controller Glossary

PFD

Personal Flotation Device

PinS

Point-in-Space

PIREP

Pilot Weather Report

POB

Persons on Board

POI

Principal Operations Inspector

PPS

Precise Positioning Service

PRM

Precision Runway Monitor

PT

Procedure Turn

RA

Resolution Advisory

RAA Remote Advisory Airport

RAIM

Receiver Autonomous Integrity Monitoring

RAIS Remote Airport Information Service

RBDT

Ribbon Display Terminals

RCAG

Remote Center Air/Ground

RCC

Rescue Coordination Center

RCLS

Runway Centerline Lighting System

RCO

Remote Communications Outlet

RD

Rotor Diameter

REIL

Runway End Identifier Lights

RLIM

Runway Light Intensity Monitor

RMI

Radio Magnetic Indicator

RNAV

Area Navigation

RNP

Required Navigation Performance

RVR

Runway Visual Range

SAR

Search and Rescue

SAS

Stability Augmentation System

SCAT-1 DGPS

Special Category I Differential GPS

SDF

Simplified Directional Facility

SFL

Sequenced Flashing Lights

SFR

Special Flight Rules

SIAP

Standard Instrument Approach Procedure

SIGMET

Significant Meteorological Information

SM

Statute Mile

SMGCS

Surface Movement Guidance Control System

SNR

Signal-to-noise Ratio

SOP

Standard Operating Procedure

SPC

Storm Prediction Center

SPS

Standard Positioning Service

STAR

Standard Terminal Arrival

STMP

Special Traffic Management Program

SWSL

Supplemental Weather Service Locations

TA

Traffic Advisory

TAA

Terminal Arrival Area

TAC

Terminal Area Chart

TACAN

Tactical Air Navigation

TAF

Aerodrome Forecast

TAS

True Air Speed

TCAS

Traffic Alert and Collision Avoidance System

TCH

Threshold Crossing Height

TD

Time Difference

TDWR

Terminal Doppler Weather Radar

TDZL

Touchdown Zone Lights

TEC

Tower En Route Control

TIBS

Telephone Information Briefing Service

TLS

Transponder Landing System

TPP

Terminal Procedures Publications

TRSA

Terminal Radar Service Area

TSO

Technical Standard Order

TWEB

Transcribed Weather Broadcast

TWIB

Terminal Weather Information for Pilots System

UFO

Unidentified Flying Object

UHF

Ultrahigh Frequency

U.S.

United States

USCG

United States Coast Guard

UTC

Coordinated Universal Time

UWS

Urgent Weather SIGMET

VAR

Volcanic Activity Reporting

VASI

Visual Approach Slope Indicator

VDA

Vertical Descent Angle

VDP

Visual Descent Point

VFR

Visual Flight Rules

VGSI

Visual Glide Slope Indicator

VHF

Very High Frequency

VIP

Video Integrator Processor

VMC

Visual Meteorological Conditions

Vmini

Minimum speed - IFR

VNAV

Vertical Navigation

Vnei

Never exceed speed - IFR

VOR

Very High Frequency Omni-directional Range

VORTAC

VHF Omni-directional Range/Tactical Air Navigation

VOT

VOR Test Facility

VR

VFR Military Training Route

VV

Vertical Visibility

WA

AIRMET

WAAS

Wide Area Augmentation System

WAC

World Aeronautical Chart

WFO

Weather Forecast Office

WGS-84

World Geodetic System of 1984

WMO

World Meteorological Organization

WMS

Wide-Area Master Station

WMSC

Weather Message Switching Center

WMSCR

Weather Message Switching Center Replacement

WP

Waypoint

WRS

Wide-Area Ground Reference Station

WS

SIGMET

WSO

Weather Service Office

WSP

Weather System Processor

WST

Convective Significant Meteorological Information

WW

Severe Weather Watch Bulletin