421 / 476
411
6 – i ndex
HoldingBay:
Adefined areawhere aircraft canbeheld, or bypassed, to
facilitateefficient surfacemovement of aircraft.
Holding Fix:
A specified location identifiedby visual or othermeans in
the vicinityofwhich thepositionof anaircraft inflight ismaintained in
accordancewithATC Instructions.
HoldingProcedure:
Apredeterminedmanoeuvrewhich keeps an
aircraftwithin a specified airspacewhilst awaiting further clearance.
HospitalAircraft:
Apriority category for useby international aircraft
whenmedical priority Is required (see alsoMedical).
HotSpot:
A locationon an aerodromemovement areawithahistoryor
potential risk of collisionor runway incursion, andwhereheightened
attentionbypilots/drivers is necessary.
ICAO 24BitAircraftAddress (24bitcode):
Aunique identification
codewhich is programmed intoeach specific aircraft’s transponder
or ADS-B transmitter during installation. This code, expressedas six
alphanumeric characters, provides adigital identificationof theaircraft
and is usedby the air traffic system to link information contained in a
flight notification to aircraft position information received viaADS-B.
IFRPick-up:
Apilot procedurewherebyaflight operating to the IFR in
ClassG airspace changes toVFRupon enteringClass E airspacewhilst
awaiting an airways clearance. IFRPick-up is limited to FL180 and
below.
Identification:
The situationwhichexistswhen theposition indication
of aparticular aircraft is seenon a situationdisplayandpositively
identifiedbyATC.
IndependentParallelApproaches:
Simultaneous approaches to
parallel or near-parallel instrument runwayswhere radar separation
minimabetweenaircraft on adjacent extended runway centre-lines are
not prescribed. The two types of independent approaches are:
• Independent Visual Approaches - duringwhich apilot is
responsible for separation from theaircraft on theother approach;
and
• ILSPRMApproaches - duringwhich separationbetweenaircraft
on adjacent ILS courses ismaintainedusingPRM.
definitions