About 30 minutes into an American Airlines flight from Dallas to Portland, Ore., a flight attendant noticed Chad Cameron Camp, 26, with his hand on a 13-year-old girl's crotch, according to the complaint.  Story highlights The alleged incident happened on an American Airlines flight 
 
 Chad Camp, 26, has been charged with abusive sexual contact 
 
 The 13-year-old girl was traveling as an unaccompanied minor 
 
 (CNN) An Oregon man has been charged with abusive sexual contact after he allegedly groped an unaccompanied teen aboard an American Airlines flight. A flight attendant had advised Camp that other seats were available, but he sat in the middle one next to the 13-year-old girl, the complaint said. “Anybody who has ever flown more than a couple of hours and knows that if there is any empty seat that is not the middle seat, of course they are going to move.” 
 
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 Camp mumbled and cursed to himself before attempting to make small talk, according to the complaint. He leaned against the teen, nudged her, touched her with his elbow and placed his hands on her knee and upper thigh three times, according to the complaint.
– A 13-year-old girl traveling Wednesday as an unaccompanied minor from Dallas to Portland says she spent the first part of her flight "frightened and trapped" and the remainder of it too scared to even use the bathroom after a 26-year-old Oregon man seated next to her allegedly groped her, KOIN reports. Chad Cameron Camp was arrested by police and FBI agents after the American Airlines flight touched down in Portland Wednesday evening, CNN reports. Although Camp had reportedly been informed by flight attendants of other empty seats with more room, he chose to stay put in a middle seat right next to the teen. "I'm fine," he said, per the complaint seen by the Washington Post. And after he engaged the girl in a bit of conversation, she says she had to push herself up against the window to try to get away from physical contact including, per the complaint, Camp nudging and elbowing her, then placing his hand on her knee and inching it up her thigh. Only when a flight attendant came around for drink-and-snack service 30 minutes later did she notice Camp's hand near the tearful girl's crotch and demanded Camp move further back on the plane, the complaint says. The flight attendant told the pilot about the situation, and law enforcement was waiting for Camp when the plane landed, arresting him on one count of abusive sexual contact—but Brent Goodfellow, the girl's attorney, says that wasn't enough. "This was 30 minutes of hell for this young lady," he tells the Post. "If I have my tray table down or my seat back 2 inches during the improper time, those guys are going to be on me immediately. This girl got abused for 30 minutes and no one was to be found." He adds that her family, which paid $300 to the airline in unaccompanied minor fees, is planning a civil suit against American, saying it could have prevented the situation. (Two TSA screeners were fired over groping allegations.)