Federal Aviation Administration Twentieth Edition
VICE . . . . . . . . . Instead/Versus
VIS/VSBY . . . . . Visibility
VMC . . . . . . . . . Visual Meteorological Conditions
VOL . . . . . . . . . . Volume
VOLMET . . . . . . Meteorlogical Information for Aircraft in Flight
VOR . . . . . . . . . . VHF Omni-Directional Radio Range
VORTAC . . . . . . VOR and TACAN (collocated)
VOT . . . . . . . . . . VOR Test Signal
W
W . . . . . . . . . . . . West
WBND . . . . . . . . Westbound
WEA/WX . . . . . . Weather
WI . . . . . . . . . . . Within
WKDAYS . . . . . Monday through Friday
WKEND . . . . . . . Saturday and Sunday
WND . . . . . . . . . Wind
WP . . . . . . . . . . . Waypoint
WSR . . . . . . . . . . Wet Snow on Runway/s
WTR . . . . . . . . . . Water on Runway/s
WX . . . . . . . . . . . Weather
/ . . . . . . . . . . . . . And
+ . . . . . . . . . . . . . In Addition/Also
Keyword Definition
OBST . . . . . . . Example Obstruction ABC XX/XXX ABC OBST TOWER 283 (246 AGL) 2.2 S LGTS OTS (ASR 1065881) TIL 1003282300
Keyword Definition
NAV . . . . . . . . Example Navigation ABC XX/XXX ABC NAV VOR OTS
COM . . . . . . . Example Communications ABC XX/XXX ABC COM ATIS OTS
SVC . . . . . . . . Example Services XX/XXX ABC SVC JET FUEL UNAVBL TIL 1003291600
AIRSPACE . . Example Airspace ABC XX/XXX ABC AIRSPACE AIRSHOW ACFT 5000/BLW 5 NMR AIRPORT AVOIDANCE ADZD TIL 1003152200
U . . . . . . . . . . . Unverified Aeronautical Information (for use only where authorized by Letter of Agreement)*
O . . . . . . . . . . Other Aeronautical Information**
3.2.1 NOTAM (D)
3.2.1.1 NOTAM (D) information is disseminated for all navigational facilities that are part of the National Airspace System (NAS), all public use airports, seaplane bases, and heliports listed in the Airport/Facility Directory (A/FD). This category of information is distributed automatically via Service A telecommunications systems. These NOTAMs remain available via Service A for the duration of their validity or until published.
All NOTAM Ds must have one of the following keywords as the first part of the text after the location identifier:
Keyword Definition
RWY . . . . . . . Example Runway ABC XX/XXX ABC RWY 3/21 CLSD
TWY . . . . . . . Example Taxiway ABC XX/XXX ABC TWY F LGTS OTS
RAMP . . . . . . Example Ramp ABC XX/XXX ABC RAMP TERMINAL EAST SIDE CONSTRUCTION
APRON . . . . . Example Apron ABC XX/XXX ABC APRON SW TWY C NEAR HANGARS CLSD
AD . . . . . . . . . Example Aerodrome ABC XX/XXX ABC AD ABN OTS
* Unverified Aeronauticatical Information can be movement area or other information received that meets NOTAM criteria and has not been confirmed by the Airport Manager (AMGR) or their designee. If Flight Service is unable to contact airport manage-ment, Flight Service shall forward (U) NOTAM information to the United States NOTAM System (USNS). Subsequent toUSNS distribution of a (U) NOTAM, Flight Service will inform airport manage-ment of the action taken as soon as practical. Any such NOTAM will be prefaced with “(U)” as the keyword and followed by the appropriate keyword contraction, following the location identifier.
** Other Aeronautical Information is that which is received from any authorized source that may be beneficial to aircraft operations and does not meet defined NOTAM criteria. Any such NOTAM will be prefaced with “(O)” as the keyword following the location identifier.
3.2.1.2 NOTAM Ds that crossover into Interna-tional NOTAMs
These NOTAMs contain the same data as NOTAM Ds, only they are referenced differently. They are categorized, stored, and issued with a series letter preceding them and are distributed via Service A to countries requesting NOTAMs for that airport. The FAA currently uses the Series A (and may use Series K) for this type of NOTAM.
3.2.2 FDC NOTAMs
3.2.2.1 On those occasions when it becomes necessary to disseminate information which is regulatory in nature, the National Flight Data Center (NFDC) in Washington, D.C., will issue an FDC NOTAM. FDC NOTAMs contain such things as amendments to published instrument approach procedures (IAPs) and other current aeronautical charts. They are also used to advertise temporary flight restrictions caused by such things as natural disasters or large scale public events that may generate a congestion of air traffic over a site.
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