On 20 February 2020, a NSW TrainLink XPT passenger train derailed while passing through a turnout at Wallan, Victoria, Australia.

[2] The accident occurred at 19:43, when NSW TrainLink's 07:40 Sydney-to-Melbourne service operated by an XPT set entered a turnout near Wallan, about 45 kilometres (28 mi) north of Melbourne, and derailed.

[12] Major speed restrictions were in turn enforced on the North East line, with NSW TrainLink temporarily terminating services at Albury.

[13] Passengers reported that the train had been gaining speed at the time of the accident, after being stopped due to a signalling issue.

[8] In the days preceding the accident, trains were scheduled to pass through the turnout in the straight ahead position.

The Victorian branch of the Australian Rail Tram and Bus Industry Union reported that V/Line drivers were refusing to traverse through the section of track that the XPT service derailed on.

Of the two power cars, XP2000 was returned to service while XP2018 remained in store as at May 2021 at Maintrain, Auburn pending the completion of investigations.

[citation needed] The Australian Transport Safety Bureau (ATSB) opened an investigation into the accident on 20 February.

[17] In April 2024 NSW Trains and the Australian Rail Track Corporation were convicted in the Melbourne Magistrates Court and fined a total of $525,000 over the derailment.