SAN FRANCISCO — Federal officials say a U.S. jet airliner nearly collided in March with an airborne drone in the sky over Tallahassee, Florida.

Jim Williams of the Federal Aviation Administration’s unmanned aircraft systems office acknowledged the incident Thursday at a San Francisco drone conference, citing it as an example of the risks posed by drones.

The near collision was reported to air traffic control on March 22 by the pilot of an American Airlines Group jet as the pilot approached the Tallahassee runway en route from Charlotte, North Carolina.

“The airline pilot said that the UAS was so close to his jet that he was sure he had collided with it,” Williams said. “Thankfully, inspection of the airliner after landing found no damage.”

The FAA has investigated the incident, but in a statement released Friday said it had been unable to identify the pilot or the drone’s operator.