Posted: Dec 16, 2020 2:51 PM ET | Last Updated: December 16, 2020
Each train wheel has three threaded holes for jacking screws, shown here circled in red.(Transportation Safety Board of Canada)
The head of OC Transpo says despite advice from the Transportation Safety Board (TSB) to replace all the wheels on Ottawa s LRT trains, that s not about to happen.
The TSB is still investigating after cracks were discovered on several wheels this summer, but issues safety advisories when it uncovers serious safety deficiencies that can t wait until the final report.
In a letter made public Tuesday, the TSB warns screws protruding from the wheel hubs could be to blame, and said the problem could be more widespread than originally thought. The defects might even go undetected despite daily inspections, the letter said.