(INSIDE EDITION) - An Oregon man stands accused of a federal crime after authorities say he groped a 13-year-old girl while she was unaccompanied on a commercial flight.
Chad Camp was arrested after a Portland-bound flight out of Dallas landed Wednesday night.
According to a criminal complaint, the Gresham man's suspicious behavior began immediately after he boarded the plane and sat directly beside the girl despite an abundance of empty seats on the American Airlines flight.
As he spoke to the girl, the criminal complaint alleges Camp against her, nudged her, touched her with his elbow and placed his hands on her knee and upper thigh.
The girl later told investigators she felt "frightened and trapped" next to Camp before a flight attendant told authorities she noticed Camp's hand near her crotch and tears in her eyes.
The flight attendant said she told Camp to change seats, which he did.
When the flight landed, one witness told investigators that Camp consumed four alcoholic drinks at the airport prior to the plane's departure.
Camp was arrested and charged with abusive sexual contact. He is being held without bail in Multnomah County Jail and is due in court Monday.
Meanwhile, the teen's parents say they plan to sue American Airlines, which charges an extra $150 for unaccompanied minors in part to ensure the safety of the child.
"She is already saying she doesn't want to be on an airplane ever again," attorney Brent Goodfellow told KOIN. "I sat with the family for about 3 hours… she didn't want to be touched by her mom, every time she went to give her kind of a loving touch she would jump."
A message left with American Airlines was not immediately returned Sunday.