The Federal Aviation Administration said it is investigating a close call between two Southwest Airlines jets that passed within 500 vertical feet of each other in Nashville on April 18.

Arriving from Myrtle Beach International Airport, Flight 507 was preparing to land in the Tennessee city at around 5:30 p.m. "The crew of Southwest Airlines Flight 507 initiated a go-around at Nashville International Airport and then received instructions from air traffic control that put the flight in the path of another airplane that was departing from a parallel runway," the FAA told USA TODAY in a statement.

The other aircraft, Southwest Flight 1152, had just departed for its journey to McGhee Tyson Airport in Knoxville, Tennessee, according to FlightAware.

Flight tracker data shows Flight 507 starting to turn right and crossing into Flight 1152's path. The two planes passed over each other with the 500 vertical feet between them, according to a post on X by FlightRadar24.

Southwest Airlines did not immediately respond to USA TODAY's request for comment. But the airline noted in a statement to CNN that there were gusty winds in the area at the time of the close call.