Robert "Sandy" Vietze, of Warren, Vt., was detained by police at New York's Kennedy Airport on Wednesday after arriving on a flight from Portland, Ore.
The U.S. Ski and Snowboard Association emailed a statement Friday to The Associated Press. It says Vietze had been dismissed from the team for conduct violations.
No one has been answering the phone at the family's home.
A spokeswoman for the Port Authority Police initially told the AP that federal prosecutors had decided not to pursue charges. A spokesman for the U.S. Attorney's office, however, says the case is pending.