A potentially catastrophic incident was narrowly avoided at a US airport in Phoenix on Friday. An air traffic controller detected that two separate aircraft had been mistakenly assigned the same call sign, American 2482. This error created a dangerous situation where the planes could have collided in the air. Fortunately, the controller intervened and corrected the mistake, preventing a possible disaster. Aviation authorities are investigating how the duplicate call sign assignment occurred. The incident highlights the critical role of air traffic control in maintaining aviation safety and preventing collisions. Sky News reported on the near miss, emphasizing the severity of the situation.