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Twist defect detection

Issue number: RO-2013-012-SI-01
Who it affects: TasRail
Issue owner: TasRail
Operation affected: Rail: Infrastructure
Background: Investigation Report RO-2013-012
Date: 15 October 2013

Safety issue description

The twist defect was not detected by TasRail’s inspection/monitoring systems, increasing the risk of derailment.

Proactive Action

Action organisation: TasRail
Action number: RO-2013-012-NSA-003
Date: 07 August 2013
Action status: Closed

To improve the detection of track twist defects, TasRail have taken the following action:

  • Increased twist trolley inspection regime from 10 weekly to monthly for areas identified as high risk for this section of track. This coincides with the Track Geometry Car which runs 3 monthly thus when this occurs the higher level Track Geometry Car inspection replaces the twist trolly inspection.
  • Provide refresher training for Track Inspectors utilising external subject matter experts in fault identification and management.
  • Purchased and issued new track measurement equipment to ensure accuracy and consistency of measurements.
  • Conduct a review of the process for maintenance inspection management to ensure inspections performed to schedule.

ATSB response:

The ATSB is satisfied that the action taken by TasRail should address this safety issue.

   
Current issue status: Adequately addressed
 
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Last update 25 February 2015