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6 – i ndex
definitions
canbe completed and thereafter, if a landing is not completed, to a
position atwhichholdingor en routeobstacle clearance criteria apply.
Intermediate Fix (IF):
Afixon anRNAV approach thatmarks theend
of an initial segment and thebeginningof the intermediate segment.
IntheVicinity:
An aircraft is in the vicinityof anon-towered
aerodrome if it iswithin ahorizontal distanceof 10miles; andwithin
aheight above theaerodrome referencepoint that could result in
conflictwithoperations at the aerodrome.
InitialApproach Fix (IAF):
Thefix at the commencement of an
instrument approach.
InitialApproachSegment:
That segment of an instrument approach
procedurebetween the initial approachfixand the intermediate
approachfixor, where applicable, thefinal approachfixor point.
Instrument LandingSystem (ILS):
Aprecision instrument
approach systemwhichnormally consists of the following electronic
components: VHF Localiser, UHFGlideslope, VHFMarker Beacons.
InstrumentRunway:
Oneof the following types of runways intended
for theoperationof aircraft using instrument approachprocedures:
• Non-precision approach runway. An instrument runway served
by visual aids and anon-visual aidproviding at least directional
guidance adequate for a straight-in approach.
• Precision approach runway, CAT I. An instrument runway served
by lLS and visual aids intended for operationswith adecision
height not lower than 200 ft and either avisibilitynot less than
800m, or aRVRnot less than 550m.
• Precision approach runway, CAT Il. An instrument runway served
by lLS and visual aids intended for operationswith adecision
height lower than 200 ft, but not lower than 100 ft andaRVRnot
less than 350m.
• Precision approach runway, CAT Ill. An instrument runway served
by ILS to and along the surfaceof the runwayand:
- for CAT IIIA - intended for operationswith adecisionheight
lower than 100 ft, or nodecisionheight and aRVRnot less
than 200m;
- for CAT IIIB - intended for operationswithadecisionheight
lower than 50 ft, or nodecisionheight and aRVR less than
200m, but not less than 50m;