This item has been moved to the National Archives as RAIB has published its safety digest describing this accident. See safety digest 04/2019.
At around 17:17 hrs on 21 December 2018, the third locomotive in a train of four light locomotives derailed at approximately 13 mph (21 km/h). The locomotive had just left Roberts Road depot and was traversing a tight left-hand curve towards Doncaster station. There were no injuries, although some infrastructure was damaged and train services were heavily disrupted.
We have undertaken a preliminary examination into the circumstances surrounding this accident. Having assessed the evidence which has been gathered to date, we have decided to publish a safety digest.
The safety digest will be made available on our website in the next few weeks.