Sorry to hear this . Hopefully the resulting health and safety investigation will show reasons. The last report heard on H&S issue was that management had been focussed on the head gear of the ticket collector who had to replace his traditional hat so maybe the council have taken their eye off the FB6 ball? I wonder if the workers union should be looking into the safety issues on board though given this incident.
One does rather wonder what a ticket collector was doing in the engine room at all, never mind on a crossing.