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6 – i ndex
Night:
That periodof timebetween theendof evening civil twilight and
thebeginningofmorning civil twilight.
Non-DirectionalBeacon (NDB):
A special radio station, the
emissions ofwhich are intended toenableamobile station to
determine its radiobearingor directionwith reference to that special
radio station.
Non-ToweredAerodrome:
An aerodromeatwhichair traffic control
is not operating.
NOTAM:
Anoticedistributedbymeans of telecommunication containing
information concerning the establishment, conditionor change in
any aeronautical facility, service, procedureor hazard, the timely
knowledgeofwhich is essential topersonnel concernedwithflight
operations.
No-TransgressionZone (NTZ):
A corridor of airspaceof defined
dimensions located centrallybetween the two extended runway
centre-lineswhere controller intervention is required tomanoeuvre
aircraftwhen this airspace is penetratedbyan aircraft conducting a
simultaneous approach to aparallel instrument runway.
OneWayRoute:
A routewith limitations for use inonedirection,
depictedonERC-H, ERC-L and/or TAC charts by anarrow in the
direction that canbeusedwithout limitation (seeERSA for additional
details).
Operator:
Aperson, organisationor enterpriseengaged inor offering
toengage in aircraft operation.
OperationsManual:
Amanual providedby anoperator for theuse
andguidanceof its operations staff, containing instructions as to
the conduct of flight operations, including the responsibilities of its
operations staff (refer CAR 215).
OvershootShear:
Awind shear occurrencewhichproduces an
INITIAL effect of overshooting thedesired approachpath and/or
increasing airspeed.
ParkingArea:
A speciallypreparedor selectedpart of an aerodrome
withinwhich aircraftmaybeparked.
definitions