. abbreviation: AWIS
Fr: service d’information météorologique à l’aviation
aviation weather service U.S.: A service provided by the National Weather Service (NWS) and the Federal Aviation Administration (FAA) which collects and disseminates pertinent weather information for pilots, aircraft operators, and ATC. Available aviation weather reports and forecasts are displayed at each NWS office and FAA FSS.
AWACS Abbreviation for: airborne warning and control system Fr: AWACS
AWBS Abbreviation for: aviation weather briefing service Fr: SEMA
AWIS Abbreviation for: aviation weather information service Fr: SIMA
AWOS Abbreviation for: automated weather observation system Fr: AWOS
AWW U.S.: Abbreviation for: severe weather forecast alert
AWY Abbreviation for: airway Fr: AWY
B
back course sector
The course sector that is situated on the opposite side of the localizer (LOC) antenna from the runway.
. see also: front course sector
Fr: secteur d’alignement de piste arrière
backtrack
The taxiing of an aircraft on a runway in use in a direction opposite to the landing or take-off direction.
Fr: circulation à contresens
balloon
A non-power-driven lighter-than-air aircraft.
Fr: ballon
base Other expression for: base leg
base leg A flight path extending from the end of the downwind leg to the extended centreline of the approach end of the landing runway (or landing path).
. also called: base
Fr: étape de base
BCST Abbreviation for: broadcast Fr: BCST
beacon An aeronautical light arranged, either through optical design or mechanical motion, to be visible to all azimuths, either continuously or consecutively, to designate a particular point on the surface of the earth.
. also called: aeronautical beacon
Fr: phare
bearing The horizontal direction to or from any point, usually measured clockwise from true north, magnetic north or some other reference point, through 360°.
. abbreviation: BRG
Fr: relèvement
bedpost Other expression for: terminal area entry fix
below minimums
An expression indicating that the weather conditions are below the minimums prescribed by regulation.
Fr: en dessous des minimums
bird hazard A hazard relating to the conduct of flight operations that results from the presence of birds, primarily in the vicinity of an aerodrome. Fr: péril aviaire
bird strike
An incident deemed to have occurred whenever
(a)
a pilot reports a bird strike;
(b)
aircraft maintenance personnel identify damage to an aircraft as having been caused by a bird strike;
(c)
personnel on the ground report seeing an aircraft strike one or more birds; or
(d)
bird remains, whether in whole or in part, are found on an airside pavement area or within 200 ft of a runway, unless another reason for the bird’s death is identified.
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