On Wednesday, 6 June 2001, at about 1841, express passenger Train 201 Overlander derailed when a wheel on the leading axle of the trailing bogie of the power van fractured as the train approached Otaihanga Road level crossing near Paraparaumu on the North Island Main Trunk. There were no injuries to train crew or passengers and damage was limited to the trailing bogie of the power van.
The safety issue identified was the suitability of the wheel set for use in passenger rolling stock.
As a result of the actions taken by the operator following this incident, no safety recommendations are included in this report.
