AIM
8/15/19
Appendix 3
−
2
Abbreviations/Acronyms
Abbreviation/
Acronym
Meaning
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
DVA . . . . . . .
Diverse Vector Area
DVFR . . . . . .
Defense Visual Flight Rules
DVRSN . . . .
Diversion
EDCT . . . . . .
Expect Departure Clearance Time
EFAS . . . . . .
En Route Flight Advisory Service
EFV . . . . . . .
Enhanced Flight Visibility
EFVS . . . . . .
Enhanced Flight Vision System
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
FAROS . . . . .
Final Approach Runway Occupancy Signal
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
FO . . . . . . . .
Fly
−
over
FPA . . . . . . . .
Flight Path Angle
FPV . . . . . . .
Flight Path Vector
FPNM . . . . . .
Feet Per Nautical Mile
FSDO . . . . . .
Flight Standards District Office
FSS . . . . . . . .
Flight Service Station
GBAS . . . . . .
Ground Based Augmentation System
Abbreviation/
Acronym
Meaning
GEO . . . . . . .
Geostationary Satellite
GLS . . . . . . .
GBAS 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
HUD . . . . . . .
Head
−
Up Display
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
IFR . . . . . . . .
Instrument Flight Rules
ILS . . . . . . . .
Instrument Landing System
ILS/PRM . . .
Instrument Landing System/Precision
Runway Monitor
IM . . . . . . . . .
Inner Marker
IMC . . . . . . .
Instrument Meteorological Conditions
InFO . . . . . . .
Information For Operators
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