ARL is the code for Arly in Burkina Faso. I doubt they have a fast track for SENs...

If you mean ARN (Stockholm Arlanda), then yes, there is a fast track for SEN, but only if you're flying on Lufthansa, Austrian or Swiss. A SEN flying economy on SAS does not have access to fast track, and a SEN flying LOT won't have access even if he's in business class.