AMC1 ADR.OPS.B.045(a)(2) Low-visibility procedures

SUITABILITY OF RUNWAYS — APPROACH AND LANDING OPERATIONS

(a) CAT II instrument approach operations may be conducted on a precision approach category II or III runway, using a CAT II instrument approach procedure.

(b) CAT III instrument approach operations may be conducted on a precision approach category III runway, using a CAT III instrument approach procedure.

(c) SA CAT I approach operations may be conducted in accordance with the following:

(1) the runway is a precision approach category I runway and an obstacle free zone (OFZ) is established;

(2) a CAT I instrument approach procedure that includes an OCH based on a radio altimeter is used;

(3) where an ILS/MLS is used, it is not promulgated with any restrictions affecting its usability and is not offset from the extended runway centre line;

(4) where a GBAS landing system (GLS) is used, it is not promulgated with any restrictions affecting its usability and should not be offset from the extended centre line;

(5) the glide path angle is 3.0^o;

(6) the pre-threshold terrain is surveyed and either a precision approach terrain chart (ICAO Annex 4, Chapter 6) is published in the AIP or the required information is included in the aerodrome terrain and obstacle chart – ICAO (Electronic) (ICAO Annex 4, Chapter 5).

(d) SA CAT II approach operations may only be conducted in accordance with the following:

(1) the runway is a precision approach category I runway and an OFZ is established, and for operations with an RVR of less than 400 m, runway centre line lights are installed;

(2) a CAT II instrument approach procedure is used;

(3) where an ILS/MLS is used, it is not offset from the extended runway centre line and no restrictions affecting its usability are published in the AIP;

(4) where a GLS is used, it is not offset from the extended runway centre line and no restrictions affecting its usability are published in the AIP;

(4) where an ILS is used, it is certified to class II/D/2;

(5) the pre-threshold terrain is surveyed and either a precision approach terrain chart (ICAO Annex 4, Chapter 6) has been published or the required information is included in the aerodrome terrain and obstacle chart – ICAO (Electronic) (ICAO Annex 4, Chapter 5).

(e) The switch-over times of the different lighting elements on runways supporting SA CAT I/II approach operations should be as follows:

ELEMENT	SWITCH-OVER TIME
Approach lighting system	15 sec
Runway edge light	1 sec
Visual approach slope indicators	15 sec
Runway threshold light	1 sec
Runway end light	1 sec
Stopway end	1 sec
Stopway edge	15 sec
Obstacle light	15 sec

(f) The switch-over time for runway edge lights may be increased to 15 sec if runway centre line lights are provided. In this case, the switch-over time for runway centre line lights should be 1 sec.