Documents filed in federal court in North Carolina say an American Airlines flight attendant who described herself as "crazy" and a "train wreck" attacked fellow crew members and U.S. marshals during a flight from Charlotte to Frankfurt, Germany, last week.

The complaint filed in U.S. District Court in Charlotte says Joanne Snow is charged with interference with flight crews and attendants, and with assaulting, resisting or impeding an officer or employee of the United States.

In an affidavit, federal air marshal Joseph Fialka says Snow's fellow flight attendants told him she was acting erratically. He said they had requested that she not work the flight, but American Airlines management didn't remove her.

Fialka says Snow slapped a flight attendant, grabbed another air marshal's collar and struck him in the chest.