Caribbean Air­lines (CAL) pi­lots are re­port­ed­ly re­sign­ing in droves as the state-owned car­ri­er has filed an in­dus­tri­al re­la­tions of­fence against the T&T Air­line Pi­lots As­so­ci­a­tion (TTAL­PA) which a source says will de­cer­ti­fy the union if suc­cess­ful.