The affidavit said Haynes was handcuffed and forcibly removed from the plane.
Delta Air Lines spokesman Morgan Durrant said Flight 1173 from Nashville to Atlanta was not boarding when Haynes rushed past gate agents. It had come back to the airport to let passengers off the plane when Atlanta thunderstorms delayed the flight.
"TSA officials at Nashville International Airport immediately initiated an inquiry into the incident," TSA said in a statement. " An employee was placed on non-screening duty pending final determination of the inquiry, but has since resigned. TSA is taking this incident seriously and will retrain employees as necessary to ensure compliance with standard operating procedures."