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Rail transportation safety investigation R21V0118

Updated in August 2021 : This investigation is in the report phase.

Table of contents

Main-track train derailment

Canadian National
Mile 547.0, Chetwynd Subdivision
North of Anzac, British Columbia

The occurrence

On , a Canadian National freight train derailed while proceeding southward at Mile 547 of the Chetwynd Subdivision, north of Anzac, British Columbia. An inspection revealed that 38 cars had derailed, including 2 residue tank cars that last contained sodium hydroxide solution and  hydrogen peroxide. There were no injuries and no leaks. The TSB is investigating.


Investigation information

Map showing the location of the occurrence




Investigator-in-charge

Photo of James Carmichael

James Carmichael has been with the Transportation Safety Board of Canada (TSB) in the Railway/Pipeline Investigations Branch since 2008. During his time at the TSB he has been a key investigator in a number of investigations in Western Canada.

Before joining the TSB, Mr. Carmichael held various mechanical positions with four separate railroads. At British Columbia Railway (BCR) from 1980 to 2004, Mr. Carmichael gained considerable experience in the mechanical field; he worked as a carman and progressed into a management role as general supervisor in the Car Department. Over the next 4 years Mr. Carmichael worked for CN Rail and CP Rail as a mechanical supervisor. He was also regional manager for Mechanical with OmniTRAX's Carlton Trail, Hudson Bay, and Okanagan Valley Railroads. He holds certifications as a hazardous materials technician and tank car specialist and was a member of BCR’s Emergency Response Team. Mr. Carmichael lives in Calgary, Alberta.


Class of investigation

This is a class 4 investigation. These investigations are limited in scope, and while the final reports may contain limited analysis, they do not contain findings or recommendations. Class 4 investigations are generally completed within 220 days. For more information, see the Policy on Occurrence Classification.

TSB 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 air, marine, pipeline, and rail 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.