Workers at Shannon Aerospace overwhelmingly for industrial action in a disagreement over payments under the previous partnership deal.
Of the 800 staff, 91 per cent voted for industrial action in pursuit of the final two phases of Sustaining Progress due since 2005.
In July, the Labour Court recommended that both sides meet in an effort to resolve the dispute. The Court also accepted the findings of an independent report that outlined the potentially dangerous financial position faced by the company if work practices did not change.
But the company has insisted that any pay increases must be accompanied by a commitment by unions to accept cost cuts.