News

TSB launches investigation into wheel cracks on Ottawa Light Rail Transit vehicles

The Transportation Safety Board of Canada (TSB) is conducting a class 3 investigation after cracks were found on a total of four wheels on three separate Ottawa Light Rail Transit (OLRT) vehicles during maintenance and inspection activities.

See investigation page for more information.

Source : Transportation Safety Board of Canada


Rolling stock damage without derailment

Ottawa Light Rail Transit
2 July 2020

The occurrence

The Transportation Safety Board of Canada (TSB) is conducting an investigation after cracks were found on a total of four wheels on three separate Ottawa Light Rail Transit (OLRT) vehicles during maintenance and inspection activities in Sorel-Tracy, Quebec.

What we know

On 02 July 2020, during maintenance activities, cracks were found in the area of two wheels that were secured to the axle by bolts in both wheels of a wheelset of Light Rail Vehicle (LRV) 1113 (R20H0079).

On 03 July 2020, two additional wheels with similar cracks were identified, one cracked wheel on LRV 1108 (R20H0080) and one cracked wheel on LRV 1133 (R20H0081). The affected LRVs were taken out of service for bogie replacement.

To date, OLRT fleet inspections have identified cracks on a total of four wheels from three different LRVs.

Following the detection of the cracks, half of the OLRT vehicles fleet has been taken out of service. 


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