Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p85
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 85/225)
Character Range: 533619–536337

the outermost light of the system, and progressing toward the threshold to the innermost light; and

(b) be of such electrical circuit design that it can be operated independently of the other lights of the approach lighting system; and

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

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.

       (11) If the centreline consists of lights as described in subsections (8), (9) and (10):

(a) additional crossbars of lights (that is, additional to the crossbar of lights at Point B) must be provided at Points A, C, D and E (where these locations are covered within the overall length of the system); and

(b) the lights forming each crossbar must be:

           (i) as nearly as possible in a horizontal straight line at right angles to, and bisected by, the line of the centreline lights; and

           (ii) spaced so as to produce a linear effect, except that gaps may be left on each side of the centreline provided:

             (A) the number of gaps is kept to a minimum to meet local requirements; and

             (B) no gap exceeds 6 m.

       (12) If the additional crossbars described in subsection (11) are incorporated in the system, the outer ends of the crossbars must lie on 2 straight lines that converge to meet the runway centreline 300 m from the threshold.

Note   Figure 9.41 (2) shows both kinds of precision approach CAT I lighting configuration mentioned in this section.

       (13) For this section, the light intensities must be in accordance with the specifications of Figure 9.43 (1)-1.

Note   ICAO Annex 14, Aerodromes, Volume I, Aerodrome Design and Operations, Attachment A, Section 11, provides information on the flight path envelopes used in the design of these lights. For ICAO documents, see section 1.07.

     Figure 9.41 (2)   Precision approach CAT I lighting system (shows matters)

9.42 Precision approach CAT II and CAT III lighting system

       (1) A precision approach CAT II and CAT III lighting system must be provided to serve a precision approach CAT II or CAT III runway.

       (2) Where a precision approach CAT II and CAT III lighting system is provided, touchdown zone lights must also be provided.

        Approach lighting system

       (3) As shown in Figure 9.42 (3) and subject to subsection (4), the approach lighting system must consist of a row of lights on the extended centreline of the runway extending at least to Point B, with:

(a) 2 side rows of lights, extending between the threshold and Point B; and

(b) 2 crossbars, 1 at 150 m and 1 at 300 m from the