Track geometry through the Rushall curve was not managed in accordance with Metro Trains Melbourne (MTM) network standards. A wide-gauge ‘A’ fault was not rectified in the field despite being closed-out on the asset management system.
The safety action taken by MTM should address the safety issue.
Metro Trains Melbourne (MTM) has improved its management of Temporary Approved Non-Conformances (TANC) to provide better oversight, visibility and reporting of decisions to deviate from the network standard. TANCs existing for 28 days or greater will also be subject to approval by a separate technical authority within MTM to validate that there are effective controls to manage risk associated with the TANC.
