Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p105
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 105/225)
Character Range: 584360–587010

(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 runway that is not serving scheduled international air transport operations; and

(c) may be used in lieu of temporarily displaced threshold Vee-bar markings required by section 8.29.

       (5) RTIL must conform to the following requirements:

(a) 1 light unit must be on each side of the runway, equidistant from the runway centreline, on a line perpendicular to the runway centreline;

(b) subject to paragraph (c), the location of the light units must be 12 to 15 m outside each line of runway edge lights, and in line with the threshold;

(c) if it is not practicable to conform to the location mentioned in paragraph (b) — the light units may be located laterally up to 20 m from the line of runway edge lights and longitudinally up to 12 m before the threshold;

(d) each light unit must be a minimum of 12 m from the edge of taxiways and runways;

(e) the elevation of both light units must be within 1 m of a horizontal plane through the runway centreline, with the maximum height above ground not exceeding 1 m.

Note 1   RTIL may also assist pilot acquisition of a threshold during twilight hours and at night. During these periods, the lights need to be controlled such that an approaching pilot will not be dazzled by the flashing lights.

Note 2   RTIL are also recommended for temporarily displaced thresholds on runways not serving scheduled international air transport operations.

Note 3   If RTIL are provided, they should not be used with other strobing lead-in light systems, to avoid conflict. In such cases, CASA recommends that the strobing lead-in light systems are deactivated during the period when the temporary displacement lit with RTIL is in effect.
       (6) RTIL must:

(a) be flashing white lights; and

(b) be such that the light flashes of each light unit are synchronised, with a normal flash rate of 100 to 120 flashes per minute; and

(c) have a minimum effective intensity of 15 000 cd ± 50%; and

        Note   See FAA Advisory Circular 150/5345-51 as in force or existing from time to time, and freely available from the FAA website, www.faa.gov, for further information.

(d) have the beam axis of each light unit aimed 15° outward from a line parallel to the runway centreline and inclined at an angle of 10° above the horizontal.

Note   As a guide, runway threshold identification lights should have an acquisition of approximately 7 km in bright sunlight.

9.60 Temporarily