When you see smoketrails appearing on the horizon, you know it will be a good one. This Coast Guard C130 was a nice surprise, coming in for what I can only interpret as an emergency/precautionary landing. Fire trucks had been waiting for a good few minutes at the first 2 holding points and followed this aircraft over the runway all the way to the end. The next day, another Coast Guard C130 (1718) arrived, perhaps to fly in maintenance personnel and/or parts.