The Iryo train from Urda underwent a thorough inspection two days before the accident

Two days before the accident, the Iryo train underwent a thorough inspection by Hitachi Rail at Renfe's workshops. On October 28, the train was immobilized at kilometer 118 of the Madrid-Sevilla line due to a failure in the LZB signaling system, which did not respond during two attempts to reset it. The train driver reported the situation to the control center, but the Renfe AVE train collided with the Iryo, resulting in at least 69 fatalities. Investigations are ongoing, focusing on the LZB system's reliability and human error in traffic control. Spain has a high incidence of signaling failures in the EU, raising concerns about safety protocols.