Appendix 4.
Abbreviations/Acronyms
As used in this manual, the following abbreviations/acronyms have the meanings indicated.
|
Abbreviation/Acronym |
Meaning |
|
AAWU |
Alaskan Aviation Weather Unit |
|
AAS |
Airport Advisory Service |
|
AC |
Advisory Circular |
|
ACAR |
Aircraft Communications Addressing and Reporting System |
|
ADCUS |
Advise Customs |
|
ADDS |
Aviation Digital Data Service |
|
ADF |
Automatic Direction Finder |
|
ADIZ |
Air Defense Identification Zone |
|
ADS-B |
Automatic Dependent Surveillance-Broadcast |
|
AFB |
Air Force Base |
|
AFCS |
Automatic Flight Control System |
|
A/FD |
Airport/Facility Directory |
|
AFIS |
Automatic Flight Information Service |
|
AFM |
Aircraft Flight Manual |
|
AFSS |
Automated Flight Service Station |
|
AGL |
Above Ground Level |
|
AHRS |
Attitude Heading Reference System |
|
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 |
|
APV |
Approach with Vertical Guidance |
|
ARENA |
Areas Noted for Attention |
|
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 |
|
ASDE-X |
Airport Surface Detection Equipment - Model X |
|
ASOS |
Automated Surface Observing System |
|
ASR |
Airport Surveillance Radar |
|
ASRS |
Aviation Safety Reporting System |
|
ATC |
Air Traffic Control |
|
ATCRBS |
Air Traffic Control Radar Beacon System |
|
ATCSCC |
Air Traffic Control System Command Center |
|
ATCT |
Airport Traffic Control Tower |
|
ATD |
Along-Track Distance |
|
ATIS |
Automatic Terminal Information Service |
|
ATT |
Attitude Retention System |
|
AWC |
Aviation Weather Center |
|
AWOS |
Automated Weather Observing System |
|
AWSS |
Automated Weather Sensor System |
|
AWTT |
Aviation Weather Technology Transfer |
|
AWW |
Severe Weather Forecast Alert |
|
BBS |
Bulletin Board System |
|
BC |
Back Course |
|
BECMG |
Becoming group |
|
C/A |
Coarse Acquisition |
|
CARTS |
Common Automated Radar Terminal System (ARTS) (to include ARTS IIIE and ARTS IIE) |
|
CAT |
Clear Air Turbulence |
|
CD |
Controller Display |
|
CDI |
Course Deviation Indicator |
|
CDR |
Coded Departure Route |
|
CERAP |
Combined Center/RAPCON |
|
CFA |
Controlled Firing Area |
|
CFIT |
Controlled Flight into Terrain |
|
CFR |
Code of Federal Regulations |
|
COA |
Certificate of Waiver or Authorization |
|
CPDLC |
Controller Pilot Data Link Communications |
|
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 |
|
DER |
Departure End of Runway |
|
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 |
|
DRVSM |
Domestic Reduced Vertical Separation Minimum |
|
DUATS |
Direct User Access Terminal System |
|
DVA |
Diverse Vector Area |
|
DVFR |
Defense Visual Flight Rules |
|
DVRSN |
Diversion |
|
EDCT |
Expect Departure Clearance Time |
|
EFAS |
En Route Flight Advisory Service |
|
ELT |
Emergency Locator Transmitter |
|
EMAS |
Engineered Materials Arresting System |
|
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 |
|
FDE |
Fault Detection and Exclusion |
|
FIR |
Flight Information Region |
|
FIS |
Flight Information Service |
|
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 |
|
HEMS |
Helicopter Emergency Medical Services |
|
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 |
|
ILS/PRM |
Instrument Landing System/Precision Runway Monitor |
|
IM |
Inner Marker |
|
IMC |
Instrument Meteorological Conditions |
|
INS |
Inertial Navigation System |
|
IOC |
Initial Operational Capability |
|
IR |
IFR Military Training Route |
|
IRU |
Inertial Reference Unit |
|
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 |
|
LDA/PRM |
Localizer Type Directional Aid/Precision Runway Monitor |
|
LGA |
LaGuardia Airport |
|
LIRL |
Low Intensity Runway Lights |
|
LLWAS |
Low Level Wind Shear Alert System |
|
LLWAS NE |
Low Level Wind Shear Alert System Network Expansion |
|
LLWAS-RS |
Low Level Wind Shear Alert System Relocation/Sustainment |
|
LNAV |
Lateral Navigation |
|
LOC |
Localizer |
|
LOP |
Line-of-position |
|
LORAN |
Long Range Navigation System |
|
LP |
Localizer Performance |
|
LPV |
Localizer Performance with Vertical Guidance |
|
LZ |
Landing Zone |
|
MAHWP |
Missed Approach Holding Waypoint |
|
MAP |
Missed Approach Point |
|
MAWP |
Missed Approach Waypoint |
|
MDA |
Minimum Descent Altitude |
|
MEA |
Minimum En Route Altitude |
|
MEARTS |
Micro En Route Automated Radar Tracking System |
|
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 |
|
MRA |
Minimum Reception Altitude |
|
MRB |
Magnetic Reference Bearing |
|
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 |
|
MWA |
Mountain Wave Activity |
|
MWO |
Meteorological Watch Office |
|
NACO |
National Aeronautical Charting Office |
|
NAS |
National Airspace System |
|
NASA |
National Aeronautics and Space Administration |
|
NAVAID |
Navigational Aid |
|
NAVCEN |
Coast Guard Navigation Center |
|
NCWF |
National Convective Weather Forecast |
|
NDB |
Nondirectional Radio Beacon |
|
NEXRAD |
Next Generation Weather Radar |
|
NFDC |
National Flight Data Center |
|
NGA |
National Geospatial-Intelligence Agency |
|
NIDS |
National Institute for Discovery Sciences |
|
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 |
|
NPA |
Nonprecision Approach |
|
NRS |
Navigation Reference System |
|
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 |
|
ODP |
Obstacle Departure Procedure |
|
OIS |
Operational Information System |
|
OIS |
Obstacle Identification Surface |
|
OM |
Outer Marker |
|
ORD |
Chicago O'Hare International Airport |
|
PA |
Precision Approach |
|
PAPI |
Precision Approach Path Indicator |
|
PAR |
Precision Approach Radar |
|
PAR |
Preferred Arrival Route |
|
PC |
Personal Computer |
|
P/CG |
Pilot/Controller Glossary |
|
PDC |
Pre-departure Clearance |
|
PFD |
Personal Flotation Device |
|
PinS |
Point-in-Space |
|
PIREP |
Pilot Weather Report |
|
POB |
Persons on Board |
|
POFZ |
Precision Obstacle Free Zone |
|
POI |
Principal Operations Inspector |
|
PPS |
Precise Positioning Service |
|
PRM |
Precision Runway Monitor |
|
PT |
Procedure Turn |
|
QICP |
Qualified Internet Communications Provider |
|
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 |
|
REL |
Runway Entrance Lights |
|
RFM |
Rotorcraft Flight Manual |
|
RLIM |
Runway Light Intensity Monitor |
|
RMI |
Radio Magnetic Indicator |
|
RNAV |
Area Navigation |
|
RNP |
Required Navigation Performance |
|
ROC |
Required Obstacle Clearance |
|
RPAT |
RNP Parallel Approach Runway Transitions |
|
RVR |
Runway Visual Range |
|
RVSM |
Reduced Vertical Separation Minimum |
|
RWSL |
Runway Status Light |
|
SAAAR |
Special Aircraft and Aircrew Authorization Required |
|
SAM |
System Area Monitor |
|
SAR |
Search and Rescue |
|
SAS |
Stability Augmentation System |
|
SBAS |
Satellite-based 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 |
|
SID |
Standard Instrument Departure |
|
SIGMET |
Significant Meteorological Information |
|
SM |
Statute Mile |
|
SMGCS |
Surface Movement Guidance Control System |
|
SNR |
Signal-to-noise Ratio |
|
SOIA |
Simultaneous Offset Instrument Approaches |
|
SOP |
Standard Operating Procedure |
|
SPC |
Storm Prediction Center |
|
SPS |
Standard Positioning Service |
|
STAR |
Standard Terminal Arrival |
|
STARS |
Standard Terminal Automation Replacement System |
|
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 |
|
TDLS |
Tower Data Link System |
|
TDWR |
Terminal Doppler Weather Radar |
|
TDZL |
Touchdown Zone Lights |
|
TEC |
Tower En Route Control |
|
THL |
Takeoff Hold Lights |
|
TIBS |
Telephone Information Briefing Service |
|
TIPH |
Taxi into Position and Hold |
|
TIS |
Traffic Information Service |
|
TIS-B |
Traffic Information Service-Broadcast |
|
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 |
|
UA |
Unmanned Aircraft |
|
UAS |
Unmanned Aircraft System |
|
UAV |
Unmanned Aerial Vehicle |
|
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 |
|
VCOA |
Visual Climb Over the Airport |
|
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 |
Instrument flight minimum speed, utilized in complying with minimum limit speed requirements for instrument flight |
|
VNAV |
Vertical Navigation |
|
VNE |
Never exceed speed |
|
VNEI |
Instrument flight never exceed speed, utilized instead of VNE for compliance with maximum limit speed requirements for instrument flight |
|
VOR |
Very High Frequency Omni-directional Range |
|
VORTAC |
VHF Omni-directional Range/Tactical Air Navigation |
|
VOT |
VOR Test Facility |
|
VR |
VFR Military Training Route |
|
VREF |
The reference landing approach speed, usually about 1.3 times Vso plus 50 percent of the wind gust speed in excess of the mean wind speed. |
|
VSO |
The stalling speed or the minimum steady flight speed in the landing configuration at maximum weight. |
|
VTF |
Vector to Final |
|
VV |
Vertical Visibility |
|
VVI |
Vertical Velocity Indicator |
|
VY |
Speed for best rate of climb |
|
VYI |
Instrument climb speed, utilized instead of VY for compliance with the climb requirements for instrument flight |
|
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 |