138 terms

TRAN - air navigation services (EN-EN)

Definitions as they appear in Commission Regulation 923/2012 on air navigation services http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2012:281:FULL:EN:PDF
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accuracy
a degree of conformance between the estimated or measured value and the true value
ADS-C agreement
a reporting plan which estab lishes the conditions of ADS-C data reporting (i.e. data required by the air traffic services unit and frequency of ADS-C reports which have to be agreed to prior to using ADS-C in the provision of air traffic services)
advisory airspace
an airspace of defined dimen sions, or designated route, within which air traffic advisory service is available
advisory route
a designated route along which air traffic advisory service is available
aerobatic flight
manoeuvres intentionally performed by an aircraft involving an abrupt change in its attitude, an abnormal attitude, or an abnormal variation in speed, not necessary for normal flight or for instruction for licenses or ratings other than aerobatic rating
aerodrome
a defined area (including any buildings, installations and equipment) on land or water or on a fixed, fixed off-shore or floating structure intended to be used either wholly or in part for the arrival, departure and surface movement of aircraft
aerodrome control service
air traffic control service for aerodrome traffic
aerodrome control tower
a unit established to provide air traffic control service to aerodrome traffic
aerodrome traffic
all traffic on the manoeuvring area of an aerodrome and all aircraft flying in the vicinity of an aerodrome. An aircraft operating in the vicinity of an aerodrome includes but is not limited to aircraft entering or leaving an aerodrome traffic circuit
aerodrome traffic circuit
the specified path to be flown by aircraft operating in the vicinity of an aero drome
aerodrome traffic zone
an airspace of defined dimensions established around an aerodrome for the protection of aerodrome traffic
aerial work
an aircraft operation in which an aircraft is used for specialised services such as agriculture, construction, photography, surveying, observation and patrol, search and rescue, aerial advertisement, etc.
Aeronautical Information Publication (AIP)
a publication issued by or with the authority of a State and containing aeronautical information of a lasting character essential to air navigation
aeronautical mobile service
a mobile service between aeronautical stations and aircraft stations, or between aircraft stations, in which survival craft stations may participate; emergency position-indicating radio beacon stations may also participate in this service on designated distress and emergency frequencies
aeronautical station
a land station in the aero nautical mobile service. In certain instances, an aero nautical station may be located, for example, on board ship or on a platform at sea
aeroplane
a power-driven heavier-than-air aircraft, deriving its lift in flight chiefly from aerodynamic reactions on surfaces which remain fixed under given conditions of flight
airborne collision avoidance system (ACAS)
an aircraft system based on secondary surveillance radar (SSR) transponder signals which operates independently of ground-based equipment to provide advice to the pilot on potential conflicting aircraft that are equipped with SSR transponders
aircraft
any machine that can derive support in the atmosphere from the reactions of the air other than the reactions of the air against the earth's surface
aircraft address
a unique combination of bits available for assignment to an aircraft for the purpose of air-ground communications, navigation and surveillance
aircraft observation
the evaluation of one or more meteorological elements made from an aircraft in flight
AIRMET information
information issued by a meteorological watch office concerning the occurrence or expected occurrence of specified en-route weather phenomena which may affect the safety of low-level aircraft operations and which was not already included in the forecast issued for low-level flights in the flight information region concerned or sub-area thereof
air-ground communication
two-way communi cation between aircraft and stations or locations on the surface of the earth
air-ground control radio station
an aeronautical telecommunication station having primary responsibility for handling communications pertaining to the operation and control of aircraft in a given area
air-report
a report from an aircraft in flight prepared in conformity with requirements for position, and operational and/or meteorological reporting
air-taxiing
movement of a helicopter/VTOL above the surface of an aerodrome, normally in ground effect and at a ground speed normally less than km/h ( kts)
air traffic
all aircraft in flight or operating on the manoeuvring area of an aerodrome
air traffic advisory service
a service provided within advisory airspace to ensure separation, in so far as practical, between aircraft which are operating on IFR flight plans; .. Official Journal of the European Union L / EN'air traffic control clearance authorisation for an aircraft to proceed under conditions specified by an air traffic control unit
air traffic control instruction
directives issued by air traffic control for the purpose of requiring a pilot to take a specific action
air traffic control service
a service provided for the purpose of: (a) preventing collisions: () between aircraft; and () on the manoeuvring area between aircraft and obstructions; and (b) expediting and maintaining an orderly flow of air traffic
air traffic control unit
a generic term meaning variously, area control centre, approach control unit or aerodrome control tower
air traffic service (ATS)
a generic term meaning variously, flight information service, alerting service, air traffic advisory service, air traffic control service (area control service, approach control service or aerodrome control service)
air traffic services airspaces
airspaces of defined dimensions, alphabetically designated, within which specific types of flights may operate and for which air traffic services and rules of operation are specified
air traffic services reporting office
a unit estab lished for the purpose of receiving reports concerning air traffic services and flight plans submitted before departure
air traffic services unit
a generic term meaning variously, air traffic control unit, flight information centre, aerodrome flight information service unit or air traffic services reporting office
airway
a control area or portion thereof estab lished in the form of a corridor
alerting service
a service provided to notify appro priate organisations regarding aircraft in need of search and rescue aid, and assist such organisations as required
alternate aerodrome
an aerodrome to which an aircraft may proceed when it becomes either impossible or inadvisable to proceed to or to land at the aerodrome
take-off alternate
an alternate aerodrome at which an aircraft can land should this become necessary shortly after take-off and it is not possible to use the aerodrome of departure; (b) 'en-route alternate an aerodrome at which an aircraft would be able to land after experiencing an abnormal or emergency condition while en route; (c) 'ETOPS en-route alternate a suitable and appropriate alternate aerodrome at which an aeroplane would be able to land after experiencing an engine shutdown or other abnormal or emergency condition while en route in an ETOPS operation; (d) 'destination alternate an alternate aerodrome to which an aircraft may proceed should it become either impossible or inadvisable to land at the aerodrome of intended landing
altitude
the vertical distance of a level, a point or an object considered as a point, measured from mean sea level (MSL)
approach control service
air traffic control service for arriving or departing controlled flights
approach control unit
a unit established to provide air traffic control service to controlled flights arriving at, or departing from, one or more aerodromes
apron
a defined area, intended to accommodate aircraft for purposes of loading or unloading passengers, mail or cargo, fuelling, parking or maintenance
area control centre (ACC)
a unit established to provide air traffic control service to controlled flights in control areas under its jurisdiction
area control service
air traffic control service for controlled flights in control areas
area navigation (RNAV)
a method of navigation which permits aircraft operation on any desired flight path within the coverage of ground- or space-based navigation aids or within the limits of the capability of self-contained aids, or a combination of these
ATS route
a specified route designed for chan nelling the flow of traffic as necessary for the provision of air traffic services; L / Official Journal of the European Union .. EN'automatic dependent surveillance — broadcast (ADS-B)' means a means by which aircraft, aerodrome vehicles and other objects can automatically transmit and/or receive data such as identification, position and additional data, as appropriate, in a broadcast mode via a data link
automatic dependent surveillance — contract (ADS-C)
a means by which the terms of an ADS-C agreement will be exchanged between the ground system and the aircraft, via a data link, specifying under what conditions ADS-C reports would be initiated, and what data would be contained in the reports
automatic terminal information service (ATIS)
the automatic provision of current, routine information to arriving and departing aircraft throughout hours or a specified portion thereof: (a) 'Data link-automatic terminal information service (D-ATIS) the provision of ATIS via data link; (b) 'Voice-automatic terminal information service (Voice- ATIS) the provision of ATIS by means of continuous and repetitive voice broadcasts
ceiling
the height above the ground or water of the base of the lowest layer of cloud below m ( ft) covering more than half the sky
change-over point
the point at which an aircraft navigating on an ATS route segment defined by reference to very high frequency omnidirectional radio ranges is expected to transfer its primary navigational reference from the facility behind the aircraft to the next facility ahead of the aircraft
clearance limit
the point to which an aircraft is granted an air traffic control clearance
cloud of operational significance
a cloud with the height of cloud base below m ( ft) or below the highest minimum sector altitude, whichever is greater, or a cumulonimbus cloud or a towering cumulus cloud at any height
code (SSR)
the number assigned to a particular multiple pulse reply signal transmitted by a transponder in Mode A or Mode C
competent authority
the authority designated by the Member State as competent to ensure compliance with the requirements of this Regulation
control area
a controlled airspace extending upwards from a specified limit above the earth
controlled aerodrome
an aerodrome at which air traffic control service is provided to aerodrome traffic regardless whether or not a control zone exists
controlled airspace
an airspace of defined dimensions within which air traffic control service is provided in accordance with the airspace classification
controlled flight
any flight which is subject to an air traffic control clearance
controller-pilot data link communications (CPDLC)
a means of communication between controller and pilot, using data link for ATC communications
control zone
a controlled airspace extending upwards from the surface of the earth to a specified upper limit
cruise climb
an aeroplane cruising technique resulting in a net increase in altitude as the aeroplane mass decreases
cruising level
a level maintained during a significant portion of a flight
current flight plan (CPL)
the flight plan, including changes, if any, brought about by subsequent clearances
danger area
an airspace of defined dimensions within which activities dangerous to the flight of aircraft may exist at specified times
data link communications
a form of communi cation intended for the exchange of messages via a data link
datum
any quantity or set of quantities that may serve as a reference or basis for the calculation of other quantities
downstream clearance
a clearance issued to an aircraft by an air traffic control unit that is not the current controlling authority of that aircraft
estimated elapsed time
the estimated time required to proceed from one significant point to another
estimated off-block time
the estimated time at which the aircraft will commence movement associated with departure
expected approach time
the time at which ATC expects that an arriving aircraft, following a delay, will leave the holding fix to complete its approach for a landing. The actual time of leaving the holding fix will depend upon the approach clearance
filed flight plan (FPL)
the flight plan as filed with an ATS unit by the pilot or a designated representative, without any subsequent changes
flight crew member
a licensed crew member charged with duties essential to the operation of an aircraft during a flight duty period
flight information centre
a unit established to provide flight information service and alerting service
flight information region
an airspace of defined dimensions within which flight information service and alerting service are provided
flight information service
a service provided for the purpose of giving advice and information useful for the safe and efficient conduct of flights
flight level (FL)
a surface of constant atmospheric pressure which is related to a specific pressure datum, , hectopascals (hPa), and is separated from other such surfaces by specific pressure intervals
flight plan
specified information provided to air traffic services units, relative to an intended flight or portion of a flight of an aircraft
flight visibility
the visibility forward from the cockpit of an aircraft in flight
forecast
a statement of expected meteorological conditions for a specified time or period, and for a specified area or portion of airspace
ground visibility
the visibility at an aerodrome, as reported by an accredited observer or by automatic systems
heading
the direction in which the longitudinal axis of an aircraft is pointed, usually expressed in degrees from North (true, magnetic, compass or grid)
height
the vertical distance of a level, a point or an object considered as a point, measured from a specified datum
helicopter
a heavier-than-air aircraft supported in flight chiefly by the reactions of the air on one or more powerdriven rotors on substantially vertical axes
high seas airspace
airspace beyond land territory and territorial seas, as specified in the United Nations Convention on the Law of the Sea (Montego Bay, )
IFR
the symbol used to designate the instrument flight rules
IFR flight
a flight conducted in accordance with the instrument flight rules
IMC
the symbol used to designate instrument meteorological conditions
instrument approach procedure (IAP)
a series of predetermined manoeuvres by reference to flight instruments with specified protection from obstacles from the initial approach fix, or where applicable, from the beginning of a defined arrival route to a point from which a landing can be completed and thereafter, if a landing is not completed, to a position at which holding or en-route obstacle clearance criteria apply.
instrument meteorological conditions (IMC)
meteorological conditions expressed in terms of visibility, distance from cloud, and ceiling, less than the minima specified for visual meteorological conditions; L / Official Journal of the European Union .. EN'landing areathat part of a movement area intended for the landing or take-off of aircraft
level
a generic term relating to the vertical position of an aircraft in flight and meaning variously, height, altitude or flight level
manoeuvring area
that part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, excluding aprons
mode (SSR)
the conventional identifier related to specific functions of the interrogation signals transmitted by an SSR interrogator. There are four modes specified in ICAO Annex : A, C, S and intermode
movement area
that part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, consisting of the manoeuvring area and the apron(s)
night
the hours between the end of evening civil twilight and the beginning of morning civil twilight. Civil twilight ends in the evening when the centre of the sun's disc is degrees below the horizon and begins in the morning when the centre of the sun's disc is degrees below the horizon
obstacle
all fixed (whether temporary or permanent) and mobile objects, or parts thereof, that: (a) are located on an area intended for the surface movement of aircraft; or (b) extend above a defined surface intended to protect aircraft in flight; or (c) stand outside those defined surfaces and that have been assessed as being a hazard to air navigation
operating site
a site selected by the operator or pilot-in-command for landing, take-off and/or hoist oper ations
pilot-in-command
the pilot designated by the operator, or in the case of general aviation, the owner, as being in command and charged with the safe conduct of a flight
pressure-altitude
an atmospheric pressure expressed in terms of altitude which corresponds to that pressure in the Standard Atmosphere, as defined in Annex , Part to the Chicago Convention
problematic use of substances
the use of one or more psychoactive substances by aviation personnel in a way that: (a) constitutes a direct hazard to the user or endangers the lives, health or welfare of others; and/or (b) causes or worsens an occupational, social, mental or physical problem or disorder
prohibited area
an airspace of defined dimensions, above the land areas or territorial waters of a State, within which the flight of aircraft is prohibited
psychoactive substances
alcohol, opioids, cannabi noids, sedatives and hypnotics, cocaine, other psycho stimulants, hallucinogens, and volatile solvents, whereas coffee and tobacco are excluded
radar
a radio detection device which provides information on range, azimuth and/or elevation of objects
radio mandatory zone (RMZ)
an airspace of defined dimensions wherein the carriage and operation of radio equipment is mandatory
radio navigation service
a service providing guidance information or position data for the efficient and safe operation of aircraft supported by one or more radio navigation aids
radiotelephony
a form of radiocommunication primarily intended for the exchange of information in the form of speech
repetitive flight plan
a flight plan related to a series of frequently recurring, regularly operated individual flights with identical basic features, submitted by an operator for retention and repetitive use by ATS units
reporting point
a specified geographical location in relation to which the position of an aircraft can be reported
restricted area
an airspace of defined dimensions, above the land areas or territorial waters of a State, within which the flight of aircraft is restricted in accordance with certain specified conditions
route segment
a route or portion of route usually flown without an intermediate stop
runway
a defined rectangular area on a land aerodrome prepared for the landing and take-off of aircraft
runway visual range (RVR)
the range over which the pilot of an aircraft on the centre line of a runway can see the runway surface markings or the lights delineating the runway or identifying its centre line
safety-sensitive personnel
persons who might endanger aviation safety if they perform their duties and functions improperly including, but not limited to, crew members, aircraft maintenance personnel and air traffic controllers
sailplane
a heavier-than-air aircraft which is supported in flight by the dynamic reaction of the air against its fixed lifting surfaces, the free flight of which does not depend on an engine, including also hang gliders, paragliders and other comparable craft
secondary surveillance radar (SSR)
a surveillance radar system which uses transmitters/receivers (inter rogators) and transponders
SIGMET information
information issued by a meteorological watch office concerning the occurrence or expected occurrence of specified en-route weather phenomena which may affect the safety of aircraft oper ations
signal area
an area on an aerodrome used for the display of ground signals
significant point
a specified geographical location used in defining an ATS route or the flight path of an aircraft and for other navigation and ATS purposes
special VFR flight
a VFR flight cleared by air traffic control to operate within a control zone in meteorological conditions below VMC
strayed aircraft
an aircraft which has deviated significantly from its intended track or which reports that it is lost
surveillance radar
radar equipment used to determine the position of an aircraft in range and azimuth
taxiing
movement of an aircraft on the surface of an aerodrome or an operating site under its own power, excluding take-off and landing
taxiway
a defined path on a land aerodrome established for the taxiing of aircraft and intended to provide a link between one part of the aerodrome and another
territory
the land areas and territorial waters adjacent thereto under the sovereignty, suzerainty, protection or mandate of a State
threshold
the beginning of that portion of the runway usable for landing
total estimated elapsed time
(a) for IFR flights, the estimated time required from take- off to arrive over that designated point, defined by reference to navigation aids, from which it is intended that an instrument approach procedure will be commenced, or, if no navigation aid is associated with the destination aerodrome, to arrive over the destination aerodrome; (b) for VFR flights, the estimated time required from take- off to arrive over the destination aerodrome
track
the projection on the earth's surface of the path of an aircraft, the direction of which path at any point is usually expressed in degrees from North (true, magnetic or grid)
traffic avoidance advice
an advice provided by an air traffic services unit specifying manoeuvres to assist a pilot to avoid a collision
traffic information
information issued by an air traffic services unit to alert a pilot to other known or observed air traffic which may be in proximity to the position or intended route of flight and to help the pilot avoid a collision
transition altitude
the altitude at or below which the vertical position of an aircraft is controlled by reference to altitudes
transition level
the lowest flight level available for use above the transition altitude
transponder mandatory zone (TMZ)
an airspace of defined dimensions wherein the carriage and operation of pressure-altitude reporting transponders is mandatory
unidentified aircraft
an aircraft which has been observed or reported to be operating in a given area but whose identity has not been established
unmanned free balloon
a non-power-driven, unmanned, lighter-than-air aircraft in free flight
VFR
the symbol used to designate the visual flight rules
VFR flight
a flight conducted in accordance with the visual flight rules
visibility
visibility for aeronautical purposes which is the greater of: (a) the greatest distance at which a black object of suitable dimensions, situated near the ground, can be seen and recognised when observed against a bright background; (b) the greatest distance at which lights in the vicinity of candelas can be seen and identified against an unlit background
visual meteorological conditions
meteorological conditions expressed in terms of visibility, distance from cloud, and ceiling, equal to or better than specified minima
VMC
the symbol used to designate visual meteorological conditions.