All limestone bulk hopper wagons have been operated up to 15 km/h higher than speeds specified in the Train Operating Conditions Manual, when loaded above 92 t and operated on class 1 or 1C track.
The train crew were unaware of the speed restriction, as were Pacific National generally. It was accepted that class F wagons were restricted to a maximum speed of 80km/h, without any caveats on operation. Pacific National management will now monitor conformance of train handling by train crews and speed limitations placed on rolling stock. The ATSB accepts Pacific National's response to operate these wagons within specified speed limits and now believes that there is a minor risk of recurrence.
On completion of our internal report a depot action plan was immediately initiated to alert all train crew of their obligation to ensure these services do not exceed appropriate speed.
Further to the initial notification to train crew post the incident, the management team continue to monitor the conformance of train running for the said services.
The ATSB is satisfied that the action taken by Pacific National adequately addresses the safety issue.