SALT LAKE CITY — A federal complaint accuses a Colorado woman of assaulting her son during a flight from Boston to Salt Lake City. The complaint filed in U.S. District Court against Cherice Dawn Klipfel states a passenger on the Sunday JetBlue Airways flight witnessed the mother striking, slapping, kicking and shoving her 8-year-old son. Records show Klipfel appeared in court Monday on a misdemeanor assault count.