Amtrak train 94 , the `` Colonial '' , ( now part of the `` Northeast Regional '' ) traveling north from Washington , D.C. , to Boston , crashed Motion into a set of Conrail locomotives running light ( without freight cars ) , and which had fouled Motion ( entered ) the mainline .

A collision Attack occurred Coming_to_be derailing the runaway in such a way that it fouled Hindering the main line just as the 16:15 Manchester to Crewe express approached Arriving , drawn Motion by two locomotives , LNWR Waterloo Class 2-4-0 No 418 `` Zygia '' and Experiment Class No 518 `` Express '' .