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Rail transportation safety investigation R20V0230

The TSB has completed this investigation. The report was published on 23 November 2021.

Table of contents

Non–main-track uncontrolled movement

Canadian National Railway Company
Remote control locomotive system
Yard assignment 1500 North end
Mile 462.4, Chetwynd Subdivision
Prince George Terminal, South Yard
Prince George, British Columbia

View final report

The occurrence

On , a Canadian National (CN) Beltpack yard assignment was switching within the CN Prince George yard. The crew lost control of the movement during the switching operation. The assignment ran away at Mile 462.4, on the Prince George Subdivision. The movement came to a stop within the yard. There was no collision and no derailment. No injuries were reported.

Media materials

News releases


Investigation report: Non-main-track uncontrolled movement
Read the news release

Investigation information

Map showing the location of the occurrence


Photo of Don Crawford

Don Crawford has many years of national and international railway experience. In his early career, he was a locomotive engineer with Canadian National (CN) Railway on its British Columbia North Corridor and Vancouver based territories and with BC Rail on the former BC Rail property. In addition, Mr. Crawford has experience in training and supervisory roles and was a staff member at CN's Gimli, Manitoba training facility. Internationally, Mr. Crawford worked in Kosovo after the 1998/99 war as part of the United Nations Peace Keeping effort helping to restore rail service to the country. Most recently, Mr. Crawford worked in Saudi Arabia as a locomotive instructor.

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.