 The Connex South Eastern was also an eight-coach train consisting of a four-coach Class 411 (411602) EMU and a four-coach Class 423 EMU.The class 411 unit was repaired at Eastleigh Works and became the only class 411 EMU in Connex livery as a result.The Health and Safety Executive (HSE) concluded that the accident was caused by the Connex train passing a signal at danger (red).