| ADF |
Automatic Direction Finder |
| ALS |
Approach Light System |
| APR CON |
Approach Control |
| ARR |
Arrival |
| ASR/PAR |
Published Radar Minimums at this Airport |
| ATIS |
Automatic Terminal Information Service |
| AWOS |
Automated Weather Observing System |
| AZ |
Azimuth |
| BC |
Back Course |
| C |
Circling |
| CAT |
Category |
| CCW |
Counter Clockwise |
| Chan |
Channel |
| CLNC DEL |
clearance delivery |
| CTAF |
Common Traffic Advisory Frequency |
| CW |
Clockwise |
| DH |
Decision Height |
| DME |
Distance Measuring Equipment |
| DR |
Dead Reckoning |
| ELEV |
elevation |
| FAF |
Final Approach Fix |
| FM |
Fan Marker |
| GPI |
Ground Paint of Intercept(ion) |
| GS |
Glide Slped |
| HAA |
Height Above Aiport |
| HAL |
Height Above Landing |
| HAT |
Height Above Touchdown |
| HIRL |
High Intensity Runway Lights |
| IAF |
Initial Approach Fix |
| ICAO |
International Civil Aviation Organization |
| IM |
Inner Marker |
| Intcp |
Intercept |
| INT |
Intersection |
| LDA |
Localizer Type Directional Aid |
| Ldg |
Landing |
| LDIN |
Lead in Light System |
| LIRL |
Low Intensity Runway Lights |
| LOC |
Localizer |
| LR, |
Lead Radial. Provides at least 2 NM (Capter 1 NM) of lead to assist in turning onto the intermediate/final course |
| MALS |
Medium Intensity Approach Light System |
| MALSR |
Medium Intensity Approach Light Systems with RAIL |
| MAP |
Missed Approach Point |
| MDA |
Mininum Descent Altitude |
| MIRL |
Medium Intensity Runways Lights |
| MLS |
Microwave Landing Systems |
| MM |
Middle Marker |
| NA |
Not Authorized |
| NDB |
Non-directional Radio Beacon |
| NM |
Nautical Miles |
| NoPT |
No Procedure Turn Required (Procedure Turn shall not be executed without ATC clearance) |
| ODALS |
Omnidirectional Approach Light System |
| OM |
Outer Marker |
| R |
Radical |
| RA |
Radio Altimeter setting height |
| Radar Required |
Radar vectoring required for this approach |
| RAIL |
Runway Alignment Indicator Lights |
| REIL |
Runway End Identifier Lights |
| RNAV |
Area Navigation |
| RPI |
Runway Point of Intercept |
| RPL |
Runway Remaining Lights |
| Runway Touchdown Zone |
First 3000' of Runway |
| RVR |
Runway Visual Range |
| S |
Straight-in |
| SALS |
Short Approach Light System |
| SSALR |
Simplified Short Approach Light System with RAIL |
| SDF |
Simplified Directional Facility |
| TA |
Transition Altitude |
| TAC |
TACAN |
| TCH |
Threshold Crossing Height (height in feet Above Ground Level) |
| TDZ |
Touchdown Zone |
| TDZE |
Tocuhdown Zone Elevation |
| TDZ/CL |
Touchdown Zone and Runway Centerline Lighting |
| TLv |
Transition Level |
| VASI |
Visual Approach Slope Indicator |
| VDP |
Visual Descent Point |
| WPT |
Waypoint (RNAV) |
| X |
Radar Only Frequency |
| RADIO CONTROL AIRPORT LIGHTING SYSTEM |
| KEY MIKE |
FUNCTION |
| 7 times within 5 seconds |
Highest intensity available |
| 5 times within 5 seconds |
Medium or lower intensity (Lower REIL or REIL-off) |
| 3 times within 5 seconds |
Lowest intensity available (Lower REIL or REIL-off) |
