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6 – i ndex
PavementClassificationNumber (PCN):
Anumber expressing the
bearing strengthof apavement for unrestrictedoperations.
Performance-BasedNavigation (PBN):
Areanavigationbasedon
performance requirements for aircraft operating alonganATS route,
onan instrument approachprocedureor inadesignatedairspace.
Note: Performance requirements areexpressed innavigation
specifications (RNAV specification, RNP specification) in terms
of accuracy, integrity, continuity, availabilityand functionality
needed for theproposedoperation in the context of a
particular airspace concept.
PermissibleAll-Up-Weight:
Theweight towhich anaircraft is limited
by virtueof thephysical characteristics of an aerodrome.
Pilot-in-Command:
Thepilot designatedby theoperator, or in the case
of general aviation, theowner, as being in commandand chargedwith
the safe conduct of aflight.
PrecisionApproachProcedure:
An instrument approachprocedure
utilising azimuth andglidepath informationprovidedby lLS.
PrecisionRunwayMonitor (PRM):
A surveillance radar system
withaminimum azimuth accuracyof 0.06degrees, anupdate
periodof 2.5 seconds or less and ahigh resolutiondisplayproviding
positionprediction anddeviationalert, used inproviding ILS course
monitoringduring independent approaches to runways separatedby
less than 1525m.
Pre-DepartureClearance (PDC):
Ameans of deliveringan
unsolicited, text-based airways clearance to eligibleaircraft via anATC
data link.
PreferredRunway:
A runwaynominatedbyATCor listed in theAIP
as themost suitable for theprevailingwind, surface conditions or
noise sensitive areas in theproximityof the aerodrome.
PrimaryMeansNavigationSystem:
Anavigation system that, for
agivenoperationor phaseof flight,mustmeet accuracyand integrity
requirements, but neednotmeet full availabilityand continuityof
service requirements. Safety is achievedby either limitingflights to
specific timeperiods, or throughappropriateprocedural restrictions
andoperational requirements.
definitions