I was asked this question the other day, b/c i guess a pilot had noticed an "amber" light on top of a tower, and was confused as to what it meant.
I was not sure if they meant the light was on top of either a regular obstruction or a control tower, but they mentioned they saw an "amber" light on top of the tower and wasn't sure what it meant since they had apparently never seen it before.
Does anyone know, whether a fellow controller or a pilot, what this amber light means? I tried looking it up in the AIM, but could not find anything that talked about an "amber" light dealing with towers.
I appreciate any information/help one could give! Thanks