Light Emitting Diodes (LEDs) used in Markings, Aeronautical Ground and Obstacle Lighting Systems

The purpose of this Information Notice is to notify Aerodrome Licence Holders (ALHs) of the policy change brought about by the development of high intensity LED luminaires. This relates to the enhancement of markings and the replacement of conventional light fittings by ones containing LEDs used in AGL systems at UK licensed aerodromes.