Birmingham International Airport is bracing itself for Christmas unrest after the Amicus union threatened strike action for the second year running.
Members of the are to be balloted on strike action after two workers were sacked for alleged unauthorised absence, falsification of records and security breaches.
Amicus said allegations made against the men were “completely without foundation”.
An airport spokesman said the decision to dismiss them for gross misconduct had been upheld following an appeal.
But Amicus, which represents more than 200 workers at the airport, said the management claims were “unsubstantiated” and demanded the reinstatement of the workers.
A union spokesman said: “The workers in question enjoy wide support among their colleagues and we will be looking to conduct an industrial action ballot in the next week with a view to an all-out strike before Christmas.”
Last year, the union balloted members on strike action in the run up to Christmas over pension arrangements.