Law enforcement authorities say Chagoury was a "positive match" to the Gilbert Chagoury on the terrorism no fly list, based on his date of birth. He was traveling on a British passport which does not require a US visa to enter the country.
According to the law enforcement report, Chagoury also is named on a second watch list called, TIDE, the Terrorist Identities Datamart Environment, maintained by the National Counterterrorism Center.
According to the Center website, the TIDE list is the US government's "central repository on international terrorist identities." Federal agencies nominate individuals for the TIDE list based on possible connections to terrorist organizations or terrorist financing, according to the website.
The report on the incident said a private jet owned by Chagoury was at Teterboro for repairs and he was attempting to leave on a second jet, a Dassault Falcon 900EX.
Chagoury, five passengers and two crew members were all detained by TSA officers who called in agents from the FBI and Customs and Border Patrol.
After being questioned for several hours by the FBI, the crew and passengers were released without incident, according to the report. By the time Chagoury's "waiver" to fly was processed, authorities said, the repairs had been finished on his jet and he departed for Paris on that aircraft.
According to the Wall Street Journal, Chagoury, of Lebanese descent, has also been a financial supporter of Christian politicians and religious leaders in Lebanon.
The paper also cited reports that Chagoury had been the subject of "government investigations into suspected bribery by Western companies that do business in Nigeria."