Rail transportation safety investigation R25T0241
The occurrence
On 16 September 2025, a Canadian Pacific Railway Company (CPKC) intermodal train was travelling east on the main track of the Nemegos Subdivision. The train consisted of three locomotives operating in a distributed power configuration (one at the front, one in the middle and one at the back), as well as 57 loaded cars. At approximately 1436 Eastern Daylight Time, while the train was travelling at about 39 miles per hour, an uninitiated emergency brake application occurred at the west siding switch (Mile 97.6) in Sultan, Ontario.