CSX train i104-23 with CSX 1836 the Richmond Fredricksburg & Potomac heritage unit doing a crew change at Syracuse before it proceeds to Port Newark,NJ. 2nd time seeing it the first time was on i104-21 with 7086 leading. CSX i104 1836,3472 5/23/26. CSX i104 7086,1836 12/21/25