A short-turn express train. As far as I know, AMT 41 is the only train on the Vaudreuil-Hudson line to not go as far as Vaudreuil and the only one to not make all stops. It leaves Lucien L'Allier Station in downtown Montreal at 0750 and only makes stops at Vendome, Montreal West, Lachine, Dorval and Pointe-Claire before stopping at Beaconsfield at 0820. It lays over there before heading back east twenty minutes later as AMT 40. Heading east it makes all stops on its way back towards downtown. Here AMT 41 passes through Pointe-Claire with AMT 1354 pushing, soon it will pass Cedar Park Station without stopping.
