DUAL MODE HIGH INTENSITY APPROACH LIGHTING SYSTEM
(ALSF-2/SSALR)

The NBP ALSF-2/SSALR system is a Dual Mode High Intensity Approach Lighting System. It provides visual approach lighting patterns for landing aircrafts on Category II and Category III runways.
The system operates in two modes: a High Intensity Approach Lighting System with Sequenced Flashing Lights (ALSF-2), and a Simplified Short Approach Lighting System with Runway Alignment Indicator Lights (SSALR).