Document ID: chunk:federal_register_of_legislation:F2024C01244:front:0:p32
Version: federal_register_of_legislation:F2024C01244
Segment Type: other
Provision Reference: 
Character Range: 112012–115128

A non-homogeneous runway surface means a runway surface that has different surface finishes across its full width. A non-homogeneous runway surface may result in differing friction, loading, and wet weather characteristics. Thus, it may limit the operations of some aircraft types depending on the requirements of the aircraft flight manual.

IATA means International Air Transport Association.

ICAO means the International Civil Aviation Organization established under the Chicago Convention.

Note   For ICAO documents, see section 1.07.

ICAO Annex, for a numbered ICAO document, means the Annex, of that number, to the Chicago Convention.

ICAO Annex 4 means Annex 4, Aeronautical Charts.

IFR means instrument flight rules, and has the same meaning as that given in CAR for I.F.R.

ILS means an instrument landing system comprised of the following components:

(a) VHF localizer equipment;

(b) UHF glide path equipment;

(c) VHF marker beacons or distance measuring equipment (DME);

(d) localizer far field monitor antennas.
Note   Each component of an ILS performs specific functions, and is separately located along the longitudinal axis of, or alongside, the runway. Different siting requirements, and restrictions to access and movement, apply to each site.

ILS critical area means an area about the localizer and glide path antennas where vehicles and aircraft must be excluded during all ILS operations because the presence of vehicles or aircraft inside the area will cause unacceptable disturbance to the ILS signal-in-space.

ILS sensitive area means an area extending beyond the ILS critical area:

(a) where the parking and movement of vehicles and aircraft is controlled to prevent the possibility of unacceptable interference to the ILS signal during ILS operations; and

(b) which is protected against interference caused by large moving objects outside the ILS critical area but still normally within the airfield boundary.

independent parallel approaches means simultaneous approaches to parallel or near‑parallel instrument runways where radar separation minima between aircraft on adjacent extended runway centrelines are not prescribed.

independent parallel departures means simultaneous departures from parallel or near‑parallel instrument runways.

instrument approach procedures means 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) means meteorological conditions expressed in terms of visibility, distance from cloud, and ceiling, less than the minimum specified for visual meteorological conditions.

instrument runway means 1 of the following types of runway nominated for the operation of aircraft using instrument approach procedures:

(a) non-precision approach runway, being a runway, served by