Navigation Services
Lighting Systems Group - PAPI Approach Light Systems (ALS) provide the basic means to transition from instrument flight to visual flight for landing. Operational requirements dictate the sophistication and configuration of the approach light system for a particular runway.
PAPI (Precision FAA Navigation Services Technical Lead: Current Status: A modification added 114 Tilt-Switch Kits to begin deliveries in June 2005-2006. There are 693 PAPIs in the NAS. Major manufacturers include New Bedford Panoramex (461), Sonicraft (131), AVW (92), and others (9). PAPIs are used to replace Visual Approach Slope Indicator Lights (VASI), and to support Commercial Aviation Safety Team (CAST) and Land and Hold Short Operations (LASHO) new requirements. The FAA is researching replacing incandescent lamps with more efficient Light Emitting Diode (LED) lamps.
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