Rail safety issues and actions

XPT tail pin acceptance

Issue number: RO-2011-012-SI-01
Who it affects: Operators of trains with this arrangement of tail pin
Issue owner: RailCorp
Transport function: Rail: Passenger - regional
Background: Investigation Report RO-2011-012
Issue release date: 19 April 2013
Current issue status: Adequately addressed
Issue status justification: The ATSB is satisfied that the action taken by RailCorp to improve their acceptance procedure addresses this safety issue.

Safety issue description

RailCorp’s acceptance testing regime for tail pins did not identify that the tail pins stamped BU 06 04 were below standard and, hence, not suitable for service.

Proactive Action

Action number: RO-2011-012-NSA-019
Action organisation: RailCorp
Date: 19 April 2013
Action status: Closed

RailCorp has revised the engineering drawing for the XPT tail pin. The drawing now specifies forged components and states that; Charpy, tensile strength, chemical composition, surface finish, hardness tests, and quality control testsare required. Additionally, RailCorp hascommenced fatigue, fracture mechanics and fracture toughness tests on the new forged tail pins to determine
theperiod at which mandatory tail pin replacement should occur.

Last update 08 January 2014