Diabetes Risk: Train Engineer's Health Ignored

In the wake of a 2023 train collision near Wainwright, Alberta, the Transportation Safety Board of Canada (TSB) is urging enhanced government oversight of medical fitness assessments for railway personnel. The accident on August 8, 2023, occurred when an engineer trainee was operating a Canadian National Railway (CN) train without adequate supervision from an engineer whose cognitive functioning had significantly declined, exhibiting symptoms similar to hypoglycemia.

The engineer, treated for type 1 diabetes with insulin, reportedly missed multiple required diabetes assessments between 2011 and 2023. Compounding these lapses, Transport Canada had not conducted audits to verify CN's adherence to medical rules for twelve years preceding the incident. This lack of oversight prompted the TSB to recommend that Transport Canada establish regular audit activities to ensure compliance.

Furthermore, the TSB highlighted a safety concern, noting that existing guidelines for employees with diabetes in railway operations are not aligned with current recommendations from Diabetes Canada or medical certification standards in aviation and marine transport. The collision itself resulted in derailed locomotives and cars, a fuel spill, but thankfully no injuries or hazardous material involvement.

In response to the accident, CN implemented new operational instructions regarding speed reductions before passing 'Clear to Stop' signals and issued bulletins concerning crew actions in critical zones. The TSB has previously advocated for enhanced train control systems to prevent crew failures to respond to signals, and has again communicated with Canada's Transport Minister regarding these ongoing safety concerns.