Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p24
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 24/225)
Character Range: 376749–379721

designations for taxiway and apron markings (shows matters)

     Figure 8.69 (1)-2   Letters and numbers used in designations for taxiway and apron markings (shows matters)

     Figure 8.69 (1)-3   Letters and numbers used in designations for taxiway and apron markings (shows matters)

     Figure 8.69 (1)-4   Letters and numbers used in designations for taxiway and apron markings (shows matters)

     Figure 8.69 (1)-5   Letters and numbers used in designations for taxiway and apron markings (shows matters)

8.70 Push-back operator guidance markings

       (1) Push-back vehicle operator guidance markings may be provided on aprons where aircraft are being pushed back by push-back vehicles (which includes push-back units).

(2) Push-back vehicle operator guidance markings must include, as a minimum:

(a) aircraft push-back lines; and

(b) towbar disconnect points.

       (3) Push-back vehicle operator guidance markings must be based on the nose wheel of the aircraft for which the markings are provided regardless of the contact point with the push‑back vehicle.

Note   Where multiple aircraft types use push-back vehicle operator guidance markings, CASA recommends that the aerodrome operator provide 1 set of guidance markings designed around the most critical aircraft type in terms of size, turn radius and the typical under- or over-steer.

       (4) Despite subsection (3), push-back vehicle operator guidance markings may be based solely on the main wheel tracks, instead of the nose wheel, if:

(a) aircraft clearance to object requirements in Chapter 6 are maintained; and

(b) there is no hazard presented to aircraft operations; and

(c) relevant aircraft operators are consulted, and agree in writing, with the writing retained by the aerodrome operator and the agreement recorded in the aerodrome manual; and

(d) the push-back design methodology, and associated push-back safety procedures, are:

 (i) communicated to the relevant aircraft operators and associated ground handling organisations; and

 (ii) documented in the aerodrome manual.

8.71 Aircraft push-back lines

       (1) The aircraft push-back line:

(a) subject to subsection 8.70 (4), must be based on the required path of the nose wheel of the aircraft with the reference code which the parking position is intended to serve; and

(b) must take the form of a line of dashes, with each dash being 1 m long, 0.15 m wide, coloured white, and with 1 m intervals between each dash.

       (2) If the push-back line is used for push-back operations with aircraft of reference code letter C, D or E, the 10 m section of line before the towbar disconnect marking must be straight.

       (3) If the entire length or a subsection of the push-back line is aligned with a lead-in line, the push-back line is to be omitted in favour of the primary lead-in line marking.

8.72 Tug push-back vehicle parking position line markings

       (1) An aerodrome operator may provide