Transport Canada did not audit MMA often and thoroughly enough to ensure safety procedures were being followed.
[CBC News Aug 20, 2014] The Transportation Safety Board’s report into the deadly train derailment in Lac-Mégantic, Que., in 2013 is calling for additional safety measures to prevent runaway trains, as well as more thorough audits of safety management systems.
“The TSB found MMA was a company with a weak safety culture that did not have a functioning safety management system to manage risks,” the agency said. The core of Lac-Mégantic, Que., was devastated by the derailment and tanker car explosions in 2013.
The report says railway rules require hand brakes alone to be capable of holding a train, yet air brakes were left on during the hand brake test the night of the disaster.