Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p104
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 104/225)
Character Range: 581826–584585

the runway.

9.57 Characteristics of runway threshold lights — non-instrument or non‑precision approach runway

        Runway threshold lights of low intensity or medium intensity must:

(a) be fixed; and

(b) be unidirectional; and

(c) show green in the direction of approach over not less than 38°, and not more than 180°, of azimuth; and

(d) for the green lights — have an average intensity of the main beam that is 1 to 1.5 times the intensity of the runway edge lights; and

(e) have a light distribution in the direction of approach that is as close as possible to the light distribution of the runway edge lights; and

(f) have a minimum light intensity in accordance with that shown in Table 9.75 (2) and Figures 9.75 (1) and 9.75 (2).

9.58 Characteristics of runway threshold lights — precision approach runway

        For a precision approach runway, runway threshold lights must:

(a) be fixed lights; and

(b) show green in the direction of approach; and

(c) have a minimum light intensity in accordance with that shown in Figure 9.75 (5).

9.59 Additional lighting to enhance threshold location — threshold wing bars and runway threshold identification lights

 Threshold wing bars

       (1) On a precision approach runway, threshold wing bars may be used to increase conspicuousness of the threshold for night operations.

       (2) If used, threshold wing bars must:

(a) be fixed, unidirectional lights that, subject to the requirements of any alignment under paragraph (f), are elevated; and

(b) show green in the direction of approach; and

(c) have a minimum light intensity in accordance with Figure 9.75 (6); and

(d) be symmetrically disposed on either side of the threshold; and

(e) be at right angles to the runway centreline; and

(f) for each wing bar:

 (i) consist of 5 lights, 2.5 m apart; and

 (ii) have the innermost light aligned with the row of runway edge lights on the corresponding side of the threshold.

 Runway threshold identification lights (RTIL)

       (3) For an aerodrome where it is difficult to locate a runway threshold from the air during the day, runway threshold identification lights (RTIL):

(a) must be used with temporarily displaced threshold markings under sections 8.27 and 8.30, and subsection 8.29 (3); and

(b) may be used during the day or night in other cases.

Note   Examples of such difficulty include the case of a displaced threshold, and an aerodrome with a complex runway and taxiway layout in the vicinity of the threshold.

       (4) RTIL:

(a) must be used by day — to mark a temporarily displaced threshold of a runway serving scheduled international air transport operations; and

(b) may be used by day or night — to mark the temporarily displaced threshold of a