Document ID: chunk:federal_register_of_legislation:F2024C01244:front:0:p36
Version: federal_register_of_legislation:F2024C01244
Segment Type: other
Provision Reference: 
Character Range: 122609–125637

system.

movement area means that part of an aerodrome to be used for the take-off, landing and taxiing of aircraft, consisting of the manoeuvring area and the aprons.

movements, for the definition of aerodrome traffic density, means the sum of the following:

(a) each take-off of an aircraft with passengers on board;

(b) each landing of an aircraft with passengers on board;

(c) each aerodrome movement that is a touch-and-go manoeuvre.

MTOM means maximum take-off mass.

MTOW means maximum take-off weight.

NDB means non-directional beacon.

near-parallel instrument runways means non-intersecting runways whose extended centrelines have an angle of convergence/divergence of 15 degrees or less.

nominated, for an ARC, means nominated by the aerodrome operator.

non-instrument runway means a runway for the operation of aircraft using visual approach procedures.

non-precision approach runway has the meaning given to it in paragraph (a) of the definition of instrument runway.

NOTAM means Notice to Airmen, and is a notice issued by the NOTAM Office containing information or instructions concerning the establishment, condition or change in any aeronautical facility, service, procedure or hazard, the timely knowledge of which is essential to persons concerned with flight operations.

obstacle-free zone (OFZ) means the airspace above the inner approach surface, inner transitional surface, baulked landing surface, and that portion of the runway strip bounded by these surfaces, which is not infringed by any fixed obstacle other than a low mass and frangibly mounted one required for air navigation purposes.

obstacle limitation surfaces (OLS) means a series of planes, associated with each runway at an aerodrome, that defines the desirable limits to which objects or structures may project into the airspace around the aerodrome so that aircraft operations at the aerodrome may be conducted safely. The obstacle limitation surfaces are as follows:

(a) the outer horizontal surface;

(b) the conical surface;

(c) the inner horizontal surface;

(d) the approach surface;

(e) the inner approach surface;

(f) the transitional surface;

(g) the inner transitional surface;

(h) the baulked landing surface;

(i) the take-off climb surface.

obstacle restriction area consists of the runway strips, runway end safety areas, clearways and taxiway strips.

obstacles means fixed (whether temporarily or permanently) and mobile objects, structures, and parts of such objects and structures, that:

(a) are located on an area provided for the surface movement of aircraft; or

(b) extend above a defined surface designated to protect aircraft in flight; or

(c) stand outside the defined surfaces mentioned in paragraphs (a) and (b) and that have been assessed as being a hazard to air navigation.

OMGWS means outer main gear wheel span.

PAL means pilot-activated lighting system.

PANS-OPS means Doc.8168-OPS/611 Volume II (Procedures for Air Navigation Services – Construction of Visual and Instrument Flight