Originally Posted by
n5296s
As for the red light, have you ever actually seen one of these things even when you're trying, even when you know exactly where the tower is and you're staring at it?
The red light was simply the controller (correctly) trying to fill in all the squares so he would have a bottle of water at the hearing. Can't blame him a bit. He probably had little expectation that it would be seen by the flight crew.