Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p137
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 137/225)
Character Range: 666734–669668

to indicate the stand centreline in use, if more than one is provided for.

       (2) An A-VDGS must be suitable for use by all types of aircraft for which the aircraft parking position is intended.

       (3) An A-VDGS must supply the following docking guidance information in sequence:

(a) the acquisition of the aircraft by the system;

(b) the azimuth alignment of the aircraft;

(c) the stopping position information.

       (4) An A-VDGS must not be used in conditions other than those specified by the manufacturer.

Note   The use of the A-VDGS in particular conditions for example, of weather, visibility or background lighting, both by day and night, must be specified by the manufacturer.

       (5) If the following are both provided and used simultaneously on an aircraft parking position:

(a) an A-VDGS;

(b) a conventional VDGS (conventional system);

        the docking guidance information provided by the A-VDGS must not conflict with the docking guidance information provided by the conventional system.

       (6) An A-VDGS must be able to indicate whether or not it is:

(a) in operational use; or

(b) unserviceable.

       (7) An A-VDGS must be located such that, throughout a docking manoeuvre, unobstructed and unambiguous guidance is provided to:

(a) the person manoeuvring the aircraft; and

(b) each other person assisting that person.

Note   The docking of the aircraft can be carried out from either pilot seat. However, in some circumstances, another person performing the docking manoeuvre may be the driver of a vehicle that is towing the aircraft.

9.124 Characteristics of an A-VDGS

       (1) An A-VDGS must provide at least the following guidance information at the appropriate stage of the docking manoeuvre:

(a) an emergency stop indication;

(b) the aircraft type and model for which the guidance is provided;

(c) an indication of the lateral displacement of the aircraft relative to the stand centreline;

(d) the direction of azimuth correction needed to correct a displacement from the stand centreline;

(e) an indication of the distance to the stop position;

(f) an indication of when the aircraft has reached the correct stopping position;

(g) a warning indication if the aircraft goes beyond the appropriate stop position.

       (2) An A-VDGS must be capable of providing docking guidance information for all aircraft taxi speeds used during the docking manoeuvre.
Note   ICAO Document 9157, Aerodrome Design Manual, Part 4 — Visual Aids, provides an indication of the maximum aircraft speeds relative to distance to the stopping position. For ICAO documents, see section 1.07.

       (3) For normal operating conditions, the time taken from determination, to display, of the lateral displacement by the A-VDGS must not result in the aircraft deviating from the aircraft parking position centreline by more than 1 m.

       (4) The following information displayed by