Controller Prevents Conflict Between American Jets Sharing Same Callsign

One flight was arriving from Chicago O'Hare, while the other was departing for O'Hare.

American 737 aircraft
An American 737-800 in Phoenix. (Photo: AirlineGeeks | William Derrickson)
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Key Takeaways:

  • A quick-thinking Phoenix air traffic controller prevented a potential conflict involving two American Airlines aircraft operating with identical call signs and on the same radio frequency.
  • The unusual situation arose due to a flight delay, causing a second aircraft to be assigned the same flight number for a different route, leading to both planes being active concurrently with the same call sign.
  • The controller distinguished the aircraft by adding "departing" and "arriving" to their call signs, ensuring proper separation was maintained at all times.
  • Both flights safely reached their destinations without incident, highlighting the professionalism of air traffic control and pilots.
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A fast-thinking air traffic controller in Phoenix stepped in Friday to make sure two American Airlines aircraft operating with the same call signs maintained proper separation.

According to a report from CBS News, two American jets – one flying from Phoenix to Chicago O’Hare, and the other arriving in Phoenix from Chicago O’Hare – were using not only the same flight number but the same radio frequency. The controller realized the airplanes were on potentially converging paths and began giving them instructions as “American 2842 departing” and “American 2482 arriving.”

The aircraft maintained separation at all times, and both landed at their destinations safely.

“I’ve been working air traffic for 25 years,” the controller said to the pilots, according to ATC recordings obtained by CBS News. “I’ve never seen two aircraft pretty much merge with the same call sign. That’s pretty incredible.”

American told the news outlet that the flight arriving from Chicago was delayed; it was supposed to land in Phoenix, let off its passengers, take on new ones, and fly back to Chicago using the same call sign. But because of the delay, American brought in another aircraft so that the passengers waiting in Phoenix could depart. As a result, the two flights ended up using identical call signs.

“The diligence and professionalism of air traffic controllers and our pilots ensured required separation was always maintained and the issue was identified and addressed,” American said in a statement. “Both flights continued safely and without incident.”

Zach Vasile

Zach Vasile is a writer and editor covering news in all aspects of commercial aviation. He has reported for and contributed to the Manchester Journal Inquirer, the Hartford Business Journal, the Charlotte Observer, and the Washington Examiner, with his area of focus being the intersection of business and government policy.
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