Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p82
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 82/225)
Character Range: 526094–528879

Figure 9.39 (2)   Simple approach lighting system (shows matters)

9.40 Simple approach lighting system — additional requirements

       (1) The lights of a SALS must be:

(a) for a SALS installed in conjunction with high-intensity runway lighting:

           (i) fixed lights showing variable white; and

           (ii) in accordance with the specifications in Figure 9.43 (1)-1; and

(b) for a SALS installed in conjunction with low or medium-intensity runway lighting:

           (i) omnidirectional fixed lights showing variable white; and

           (ii) of an intensity and light distribution compatible with the respective standards for the installed low or medium-intensity runway lighting.

       (2) Subject to subsection (3), each centreline light of a SALS must consist of either:

(a) a single source; or

(b) a barrette at least 3 m in length.

Note   If it is anticipated that the SALS will be developed into a precision approach lighting system, it is recommended that the centreline lights are represented by barrettes of 4 m in length rather than a single source centreline.

       (3) If it is not physically practicable to provide a centreline extending for a distance of 420 m from the threshold:

(a) the SALS must be at least 300 m in length as to include the crossbar; and

(b) each centreline light must consist of a barrette at least 3 m in length.

Note   Subject to the approach system having a crossbar at 300 m from the threshold, an additional crossbar at 150 m from the threshold is recommended.

       (4) If identification of a SALS is difficult at night because of light pollution from surrounding lights, sequenced flashing lights, conforming to the requirements of subsection 9.41 (10), may be installed but only in the outer portion of the SALS associated with a barrette centreline.

CHAPTER 9

Division 7 Precision approach CAT I, II and III lighting systems

9.41 Precision approach CAT I lighting system

       (1) A precision approach CAT I lighting system must be provided to serve a precision approach CAT I runway supporting instrument approach operations with a visibility less than 1 500 m.

       (2) As shown in Figure 9.41 (2), a precision approach CAT I lighting system must consist of a row of lights on the extended centreline of the runway extending, within a tolerance of ± 15', at least to Point B, with a row of lights forming a crossbar 30 m in length at Point B.

Note 1   The design objective for a precision approach CAT I lighting system that utilises a distance-coded centreline should be a system length of 900 m (adjustable for the tolerances shown in Figure 9.41 (2). This length enables full design layout of this form of approach lighting system.

Note 2   CASA recommends that for a precision approach