Rail safety issues and actions
|Date issued:||21 February 2008|
|Safety action status:|
|Background:||Why this Recommendation was developed|
The design tolerances during the construction of the underframe and draft sill area may have been exceeded on some CQBY wagons. In the case of the failed coupler on wagon CQBY 0118A, this was evidenced by signs of biased wear on the coupler wear plate and contributed to excessive hard contact and wear on the coupler draft key and associated components, in particular the draft key retainer pins and their split pins.
Safety actions taken
Chicago Freight Car Leasing Australia has assessed the risks and associated deficiencies with the Chinese manufactured draft key retainer pins fitted to all CQBY series 1 and series 2 wagons. On 26 April 2007 Chicago Freight Car Leasing Australia distributed a safety alert through Maintenance Improvement Circular No 21/07 for the fitment of all CQBY wagons with Azee draft key retainer pins to ensure a consistent rework/modification program is achieved. Chicago Freight Car Leasing Australia has distributed this safety alert to all operators and maintainers of CQBY wagons and includes a numeric fleet number checklist for repairers to endorse by signature when these wagons have been refitted. Copies of checklists are returned to Chicago Freight Car Leasing Australias Wagon Asset Manager for audit and retention. The program is continuing.
In the most recent addition to the CQBY fleet, Chicago Freight Car Leasing Australia has fitted vertical pin type couplers to the Mark IV version of these wagons.
The Australian Transport Safety Bureau recommends that Chicago Freight Car Leasing Australia take action to address this safety issue.