Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p2
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 2/225)
Character Range: 321103–324137

pointing towards the displaced runway threshold; and

(e) the stem of each arrow must be 30 m long and the same width as the centreline marking;

(f) the combined length of the arrowhead, the arrow stem and the gap between the base of the arrow and the head of the preceding arrow must be 50 m.

     Figure 8.26 (1)-1   Permanently displaced threshold markings (shows matters)

       (3) If a threshold on any runway serving scheduled international air transport operations is permanently displaced, in addition to markings, the location of the new threshold may be identified with runway threshold identification lights (RTIL).

Note 1   RTIL are also recommended where increased conspicuity of the permanently displaced threshold is required on runways not serving scheduled international air transport operations, and on runways serving international air transport operations not to a schedule.
Note 2   If RTIL are provided, CASA recommends that they should not be used with other strobing lead-in light systems to avoid conflict. In such cases, the strobing lead-in light systems should be deactivated during the period the temporary displacement is in effect.

     Figure 8.26 (1)-2   Markings for a typical runway with a permanently displaced threshold (shows matters)

8.27 Temporarily displaced threshold markings

Note   If an instrument runway threshold is displaced, CASA recommends that the aerodrome operator should consult with the instrument flight procedure designer in relation to any published procedures for that runway.

(1) Subject to subsection (2), if a permanent runway threshold is temporarily displaced, then temporarily displaced threshold markings must be provided.

(2) If a threshold displacement will only occur during periods of night, then temporarily displaced threshold markings may be omitted, provided that:
(a) visual aids in the form of lighting are operational for the displaced threshold with non‑serviceable sections of the runway correctly isolated or obscured; and
(b) temporarily displaced threshold markers are available and able to be fully installed within 30 minutes of the beginning of morning civil twilight in the event of any delay to reinstatement of the threshold.

(3) For an aerodrome with scheduled international air transport operations, if a threshold is temporarily displaced then RTIL must be provided at the displaced location (except for an emergency).

Note   RTIL are also recommended for temporarily displaced thresholds on runways generally.

    (4) If:

(a) a movement area guidance sign (MAGS) displays declared distance information; and

(b) because of a period of temporary threshold displacement the MAGS information is incorrect for the period;

        the MAGS must be obscured until the permanent threshold is reinstated.

8.28 Temporarily displaced threshold markings — more than 30 days

        If a permanent runway threshold is to be displaced for more than 30 days, the temporarily displaced threshold markings must comply with the following: