During a Senate Committee hearing on Tuesday, Senator Tammy Duckworth (D-IL) credited Delta Air Lines flight crew for preventing a catastrophic collision at Boston’s Logan Airport.

The incident involved a near-miss between a Delta Air Lines aircraft and an American Airlines plane. According to the Federal Aviation Administration, Delta Flight 2351—operating an Airbus A319—executed a go-around around 11:30 a.m. on Saturday due to an American Airlines Boeing 737-823 departing from an intersecting runway.

Duckworth stated the Delta crew spotted the American Boeing 737 and performed a go-around to avoid collision, saving 129 passengers and six crew members aboard. A Delta spokesperson confirmed the crew followed established procedures in coordination with Air Traffic Control during the incident. The jets were estimated to be approximately 300 feet apart at the time.

Air traffic control audio suggested controllers may have lost track of the American Airlines flight after clearing it for takeoff. Senator Jerry Moran, a Republican from Kansas, noted the close call during his remarks at the committee session.

Duckworth emphasized: “In far too many of these incidents, the difference between a close call and a deadly disaster has come down to a single, highly trained and professional individual taking emergency action.”

The Federal Aviation Administration clarified that go-arounds are safe, routine procedures performed at the discretion of pilots or air traffic controllers.