Montgomery Regional Airport said in a statement that the employee died in an “industrial accident”.
“We are saddened to hear about the tragic loss of a team member of the AA/Piedmont Airlines,” airport executive director Wade Davis said in the statement.
The Federal Aviation Administration (FAA) told American new outlet Fox News that the employee was killed on the ramp at the airport where American Airlines Flight 3408, an Embraer E175 twin-jet, was parked. Data on FlightAware showed the flight was scheduled to depart from Gate 4 in Montgomery for Dallas-Fort Worth on Saturday afternoon.
The airport said in a Twitter post that normal operations resumed at 8.30pm. Both the Federal Aviation Administration and the National Transpiration Safety Board are investigating the incident.
American Airlines did not immediately respond to an email from the Associated Press seeking additional information.