Railway Investigation R16W0242

Main-track train collision

The occurrence

On 29 November 2016, empty Canadian Pacific (CP) ballast train BAL-27 rolled uncontrolled in the siding at Estevan, Saskatchewan and struck CP freight train 293-28, which was stationary on the main track, at about mile 138.70 of CP’s Weyburn Subdivision. The BAL-27 locomotive sustained damage and two cars of the freight train derailed. No injuries and no release of dangerous goods were reported.

Map of the area

Investigator-in-charge

Photo of Glen Pilon

Glen Pilon has been with the TSB since 2008 as Technical Coordinator and investigator at the TSB Head Office in Gatineau, Quebec. He has been the investigator-in-charge of 4 rail accident investigations and has acted as train operations expert on many others. Mr. Pilon worked for the Ottawa Valley Railway (OVR) from 1996 until 2008 as locomotive engineer and safety officer and with the Canadian Pacific Railway (CPR) from 1987 until 1996 in operations as trainman and conductor.

Transportation Safety Board investigation process

There are 3 phases to a TSB investigation:

  1. Field phase: a team of investigators examines the occurrence site and wreckage, interviews witnesses and collects pertinent information.
  2. Examination and analysis phase: the TSB reviews pertinent records, tests components of the wreckage in the lab, determines the sequence of events and identifies safety deficiencies. When safety deficiencies are suspected or confirmed, the TSB advises the appropriate authority without waiting until publication of the final report.
  3. Report phase: a confidential draft report is approved by the Board and sent to persons and corporations who are directly concerned by the report. They then have the opportunity to dispute or correct information they believe to be incorrect. The Board considers all representations before approving the final report, which is subsequently released to the public.

For more information, see our Investigation process page.

The TSB is an independent agency that investigates marine, pipeline, railway and aviation transportation occurrences. Its sole aim is the advancement of transportation safety. It is not the function of the Board to assign fault or determine civil or criminal liability.