The FAA and the National Transportation Safety Board have opened probes into the incident, which occurred at Austin-Bergstrom International Airport.
U.S. aviation-safety agencies said they are investigating an incident Saturday at the airport in Austin, Texas, where planes operated by Southwest Airlines Co. and FedEx Corp. could have collided.
Around 6:40 a.m. CT, a FedEx cargo plane was cleared to land on one of the runways at Austin-Bergstrom International Airport, a spokesman for the Federal Aviation Administration said, citing preliminary information.
Shortly before that aircraft was set to land, an air-traffic controller cleared a Southwest flight to depart from the same runway, he said.