CN 9402, & CN 4805, L523 Local stops to uncouple,& Switching out Tanks at “Appvion” Appleton, WI

on June 15th, 2026. Past Mon. On this day, on June 15th, I went to this crossing to wait for L523 to approach here. The train did approach here, but stop to uncouple its train here, and after it did that, they head to “Appvion” to switch out Tanks there, on this line. And after they done switching, they head back to its train. With the CN GP40-2LW and the GP38-2W. CN L523, Lawe Street, CN Fox River Sub, Appleton, WI 6/15/26