As the supply of incandescent lamps used in approach lighting systems dwindles, the FAA has begun using Light Emitting Diode (LED) lamps to keep the approach lighting up and running. Pilots using EFVS with IR-based sensors on approaches to runways with LED approach lights may have a decreased sensor performance.

Numerous FAA offices collaborated on how best to track the airfields where LEDs have been installed. The most efficient method of disseminating the information is to include a standard remark in the “Additional Remarks” section of the chart supplement pages for airports where LEDs have been installed in the approach lighting system(s). The below image includes an example of the verbiage that pilots should expect to see in the chart supplement.