A 61-year-old French man was arrested at Philadelphia International Airport and charged with impersonating a pilot after airline officials found him in the cockpit of a plane scheduled for takeoff, police said Friday.

The crew of a US Airways flight bound for West Palm Beach, Fla., found Philippe Jernnard of La Rochelle, France, in the jump seat behind the pilot on Wednesday evening, removing him after he was unable to produce valid credentials and became argumentative, police said.

Jernnard, who was a ticketed passenger, was wearing a white shirt with an Air France logo and had a black jacket with epaulets on the shoulders, police said. Officer Christine O’Brien said police found him in possession of a counterfeit Air France crew member ID card.

Pilots can typically ride for free in the jump seat of another airline, but they must make arrangements ahead of time and their presence would be noted on a passenger manifest. That manifest is reviewed by the pilot before takeoff – meaning that Jernnard didn’t have a chance of remaining, said Douglas Laird, former security director for Northwest Airlines.

“The guy can’t do any harm sitting up there. He has no access to the controls sitting there. I think the system worked,” said Laird, who now runs an airline security consultancy in Reno, Nev.

Police said there’s no indication Jernnard meant any harm. A US Airways spokeswoman referred questions to the FBI, which confirmed it is investigating but declined to comment Friday.

O’Brien said Jernnard initially became upset at the gate when he asked to be upgraded to business class.

“The (US Airways) employee gate agent told the male there was no space left in business class. He became irate,” O’Brien said.

Jernnard then boarded the plane and made his way to the jump seat.

He was charged with criminal trespass, forgery, records tampering, false impersonation of a person privately employed, and providing false identification to law enforcement. Federal charges are also expected.