BUFFALO, N.Y. (AP) — An airline passenger has pleaded guilty to molesting a woman during a flight from Newark, New Jersey to Buffalo, New York.

U.S. Attorney James P. Kennedy Jr. in Buffalo says Michael Hildebrand grabbed a woman's groin during a United Airlines flight on Dec. 20.

The Orchard Park, New York resident has pleaded guilty to a federal assault charge.

He faces up to six months in jail when he's sentenced on Sept. 7.