Passengers are forced off a train service between London Marylebone and Stourbridge Junction after the air conditioning system fails on board during unusually warm May-day weather, according to reports. The incident affects the 4.37pm service from London Marylebone to Stourbridge Junction in the West Midlands. After the air conditioning stops working in the carriages, passengers report conditions becoming too hot, prompting the decision to remove them from the train. The reports describe the weather as record-breaking for May, adding to discomfort while the ventilation and cooling system is not functioning. The outlets do not provide detailed information on the cause of the air conditioning breakdown, the response from rail staff, or whether cooling is restored during the journey. They also do not state the total number of affected passengers or any subsequent timetable impacts beyond the fact that passengers are taken off the service following the equipment failure. The reports focus primarily on the heat experienced by commuters and the air conditioning malfunction as the trigger for the disruption.