BRIDGEPORT, Conn. (AP) A Bridgeport judge has ruled against a Fairfield man challenging an order to register as a sex offender after he was convicted of sexually assaulting a female passenger on a Las Vegas-to-New York flight.

Superior Court Judge Richard Gilardi threw out a lawsuit Wednesday by John Callanan against the commissioner of public safety.

The Connecticut Post reportsGilardi ruled that Callanan waived his right to a challenge by agreeing to register as part of a plea agreement.

The newspaper reports Callanan and his lawyer were not available for comment.

Authorities say Callanan intrusively touched a female passenger in October 2006. He pleaded guilty to abusive sexual contact without permission and sentenced to 13 months in prison.

He says he has a psychiatric condition causing him to experience gratification from contact with non-consenting people.