Rail safety investigations & reports

Fractured bogie frame on coal train TM78A at Kooragang, NSW, on 12 December 2017

Investigation number:
RO-2017-018
Status: Completed
Investigation completed
Phase: Final report: Dissemination Read more information on this investigation phase

Final Report

Download final report
[Download  PDF: 507KB]
Alternate: [Download  DOCX: 769KB]
 

What happened

On 12 December 2017, a fractured bogie was identified on Pacific National train TM78A during a roll-by inspection at the Kooragang Coal Terminal, New South Wales. The fracture was on bogie NDCA 1199 of wagon NHBH 42954J. This wagon operated loaded between Tahmoor Colliery and Kooragang prior to identifying the fractured bogie.

What the ATSB found

The ATSB found that a fatigue crack went undetected during preventative maintenance activities prior to the structural failure of the bogie frame. It is probable that the fracture was visible at the time of unloading at Newcastle Coal Infrastructure Group on 11 December, which went undetected. The fractured bogie was identified during a roll-by inspection on 12 December, likely preventing a derailment.

What's been done as a result

Pacific National made changes to the maintenance standards used during scheduled maintenance, to increase the area of the bogie frame subjected to non-destructive testing. These changes are aimed at identifying and addressing fatigue cracking prior to the escalation of the defect.

Safety message

Asset managers should ensure that inspection techniques effectively monitor and report on asset condition. Risk controls should also be continuously assessed to control risk to an acceptable level through the life cycle of the asset.

Download final report
[Download  PDF: 507KB]
 
 
Alternate: [Download  DOCX: 769KB]
 

The occurrence

General details
Date: 12 December 2017   Investigation status: Completed  
Time: 0554 AEST   Investigation level: Defined - click for an explanation of investigation levels  
Location   (show map): Kooragang Coal Terminal, Number 3 Departure Road   Investigation phase: Final report: Dissemination  
State: New South Wales    
Release date: 17 March 2020   Occurrence category: Incident  
Report status: Final   Highest injury level: None  

Train details

Train details
Line operator ARTC  
Train operator Pacific National  
Train registration TM78A  
Type of operation Freight  
Sector Freight  
Damage to train Substantial  
Departure point Kooragang Coal Terminal, NSW  
Destination Tahmoor, New South Wales  
Last update 17 March 2020