Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p135
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 135/225)
Character Range: 661487–664324

which allows lighting to still meet illuminance requirements in the event of commonly occurring outages. The floodlight designer may choose the factor, provided it is appropriate for the particular floodlighting system.

CHAPTER 9

Division 13 Aircraft parking position lighting

9.117 Visual docking guidance systems

        A visual docking guidance system (a VDGS) or an advanced visual docking guidance system (an A-VDGS) must be provided at an apron aircraft parking position equipped with a passenger loading bridge which requires precise positioning of an aircraft.

Note   At international aerodromes used for air transport operations and which are equipped with a passenger loading bridge, CASA recommends the use of A-VDGS parking positions.

9.118 Characteristics of visual docking guidance systems

       (1) A VDGS must provide both azimuth and stopping guidance.

       (2) For a VDGS, the azimuth guidance unit and the stopping position indicator must, both by day and by night:

(a) be adequate for use in all conditions of weather, visibility, background lighting and pavement for which the system is intended; and

(b) not present a hazard to the pilot.

Note   Care is required in both the design and on-site installation of the system to ensure that reflection of sunlight, or other light in the vicinity, does not degrade the clarity and conspicuity of the visual cues provided by the system.

       (3) For subsection (2), the azimuth guidance unit and the stopping position indicator must be of a design such that:

(a) a clear indication is available to the pilot of any malfunction of the unit, or the indicator, or both; and

(b) the unit, or the indicator, or both can be turned off.

       (4) The azimuth guidance unit and the stopping position indicator must be located in such a way that there is continuity of guidance to the pilot as between the following:

(a) the aircraft parking position markings;

(b) the aircraft stand manoeuvring guidance lights, if present;

(c) the VDGS.

       (5) A VDGS must be sufficiently accurate as to provide safe tracking by an aircraft for all of the loading bridge and fixed aircraft servicing installations on the parking position.

       (6) If selective operation is required to prepare the VDGS for use by a particular type of aircraft, then the system must provide an identification of the selected aircraft type to both the pilot and the system operator as a means of ensuring that the system has been set properly.

9.119 Azimuth guidance unit — location

        To ensure that its signals are visible from the cockpit of an aircraft throughout a docking manoeuvre, the azimuth guidance unit must be:

(a) located on, or adjacent to, the extension of the parking position centreline ahead of the relevant aircraft; and

(b) aligned for use:

 (i)