Dean is a well liked driver on the Central Line, unfairly sacked by a not-well-liked manager. It was clear what would happen. His union balloted and the result was a strong yes for industrial action. Drivers at Central line West depots will strike on 24 December and 9 January to demand his reinstatement.
Dean passed a signal at danger in a depot he hadn’t been in for a long time and applied a procedure not suitable to that location. He made a mistake in an unfamiliar location. Anyone could've had had done it. The answer is to provide more training, not a sacking.