The calendar, numerous excerpts of which appeared in the Spanish media, shows the Air Comet attendants, all female, posing provocatively in and outside airline cabins, and in one case on top of a jet turbine.

"We are just demanding our rights to receive what is ours, we each have eight or nine months of unpaid salaries," attendant Adriana Ricardo, who appears in the calendar, told Reuters.

Air Comet, run by the embattled chairman of Spain's main employers' association CEOE, Gerardo Ferran, filed for administration in December after a British court impounded nine of its aircraft at the request of German bank HSH Nordbank.