GM4 NCC.OP.110 Aerodrome operating minima — general
CAA ORS9 Decision No. 47
Text in magenta in force from 30 October 2025
APPROACH LIGHTING SYSTEMS — ICAO AND FAA SPECIFICATIONS
The following table provides a comparison of the ICAO and FAA specifications.
Table 17
Approach lighting systems — ICAO and FAA specifications
|
Class of lighting facility |
Length, configuration and intensity of approach lights |
|---|---|
|
FALS |
ICAO: CAT I lighting system (HIALS ≥ 720 m) distance coded centre line, barrette centre line FAA: ALSF1, ALSF2, SSALR, MALSR, high- or medium-intensity and/or flashing lights, 72 0m or more |
|
IALS |
ICAO: simple approach lighting system (HIALS 420–719 m) single source, barrette FAA: MALSF, MALS, SALS/SALSF, SSALF, SSALS, high- or medium-intensity and/or flashing lights, 420–719 m |
|
BALS |
Any other approach lighting system (e.g. HIALS, MALS or ALS 210–419 m) FAA: ODALS, high- or medium-intensity or flashing lights 210–419 m |
|
NALS |
Any other approach lighting system (e.g. HIALS, MALS or ALS <210 m) or no approach lights |