Document ID: chunk:federal_register_of_legislation:F2024C01244:front:0:p35
Version: federal_register_of_legislation:F2024C01244
Segment Type: other
Provision Reference: 
Character Range: 120101–122854

part of a movement area for the landing or take-off of aircraft.

landing distance available (LDA) means the length of runway (RWY) available for the ground run of a landing aeroplane. The LDA commences at the runway threshold.

Note 1   LDA = length of RWY (if threshold is not displaced).

Note 2   The stopway (SWY) and clearway (CWY) are not part of the LDA.

light failure means that:

(a) the light is deemed to be unserviceable (that is, in a failed state) when the main beam average intensity:

 (i) is less than 50% of the value specified in the appropriate figure showing the isocandela diagram; or

 (ii) ceases to illuminate; and

(b) for paragraph (a), for light units with the designed main beam average intensity higher than the value shown in the isocandela diagram — the 50% value must be related to that higher design value; and

(c) when assessing the main beam — specified angles of beam elevation, toe-in and beam spread must be taken into consideration.

lighting system outage means that a light or lighting system is experiencing a deteriorated performance level (including total failure) which requires:

(a) the fixing of the light or lighting system as soon as possible; and

(b) a report to be made to AIS provider requesting that a NOTAM be issued.

lighting system reliability means the probability that the complete installation operates within the specified tolerances and that the system is operationally usable.

low-visibility procedure (LVP) means a procedure applied at an aerodrome for protecting aircraft operations during conditions of reduced visibility or low cloud.

LVP means low-visibility procedure.

MAGS means movement area guidance sign.

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

marked:

(a) when used in relation to a marking — refers to the marking; and

(b) when used in relation to a marker — refers to the marker.

marker means an object displayed above ground level in order to indicate an obstacle or delineate a boundary.

marking means a symbol or group of symbols displayed on the surface of the movement area of an aerodrome to convey surface movement, or aeronautical, information.

mass and weight, as used in this MOS, have the same meaning.

MAUM means maximum all-up mass.

MET means meteorological.

method of working plan (MOWP) means a plan to ensure that aerodrome works do not present a hazard to aircraft operations.

MLS means microwave landing 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