Document ID: chunk:federal_register_of_legislation:F2024C01244:reg:5:p70
Version: federal_register_of_legislation:F2024C01244
Segment Type: reg
Provision Reference: reg 5 (pt 70/225)
Character Range: 495852–498628

Name of aerodrome [INSERT NAME] AERODROME LIGHTING NOT ACTIVATED.

CHAPTER 9

Division 4 Obstacle lighting

9.27 Artificial objects and structures

       (1) Subject to subsection (2), for a runway intended to be used at night, the following artificial objects or structures are hazardous obstacles and must be provided with obstacle lighting:

(a) an object or structure that extends above the take-off climb surface within 3 000 m of the inner edge of the take-off climb surface;

(b) an object or structure that extends above the approach or transitional surface within 3 000 m of the inner edge of the approach surface;

(c) an object or structure that extends above the applicable inner, conical or outer horizontal surfaces;

(d) an object or structure that extends above the obstacle assessment surface of a T-VASIS or PAPI;

(e) an object or structure in the vicinity of a taxiway, an apron taxiway or a taxilane, that is a hazard to aircraft using the taxiway, apron taxiway or taxilane, except that obstacle lights must not be installed on elevated ground lights or MAGS.

       (2) For paragraph (1) (e):

in the vicinity of means in the 5% plane:

(a) originating laterally from the edge of the graded section of the taxiway strip or the edge of the graded portion of the runway strip; and

(b) whose origin is ground level at the edge of the graded portion of the runway or taxiway strip.

       (3) Despite subsection (1), CASA may determine in writing, following an assessment, that a hazardous obstacle may remain unlit because it is:

(a) shielded by another object or structure that is already lit; or

(b) does not present a significant hazard to aviation safety.

       (4) Despite subsection (1), CASA may determine in writing, following an assessment:

(a) that an object or structure on, or within the immediate vicinity of, the aerodrome is a hazardous obstacle; and

(b) what, if any, lighting is required for that hazardous obstacle.

Note   Owners of tall buildings or structures whose summit is below the obstacle limitation surfaces, or that is less than 100 m above ground level, may, of their own volition, provide obstacle lighting to indicate the presence of such buildings or structures at night. To ensure consistency, avoid confusion to pilots, and further the interests of safety both in the air and on the ground, such obstacle lighting should conform with the standards specified in this MOS.

       (5) Obstacle lighting may be used during the day instead of obstacle marking.

       (6) Obstacle lighting must operate throughout the hours of darkness unless it is within the aerodrome boundary and activated by a PAL.

9.28 Natural obstacles

Note   Natural obstacles such as terrain and vegetation are normally extensive. If