MIAMI, Florida (CNN) -- Two former America West Airlines pilots surrendered Thursday on federal charges of being under the influence of alcohol while they were behind the controls of a passenger aircraft. Capt. Thomas Cloyd and co-pilot Christopher Hughes appeared Thursday afternoon before a U.S. magistrate and were released on $100,000 bond each. The federal grand jury indictment was unsealed Wednesday. If convicted, each man could be sentenced to as many as 15 years in prison and fined up to $250,000. Both men were declared indigent by the magistrate and were given public defenders. James Rubin, an attorney who...