Iranian citizen and a pilot for the airline plead guilty in court . Indictment said the violations were sales of helicopters , engine parts for civilian aircraft . Each face up to 40 years in prison for violating the ban .
Iranian citizen and a pilot for U.S. airline plead guilty in Kentucky . Indictment said the men arranged sales of helicopters , engine parts for civilian use . Each face up to 40 years in prison for violating export ban .