# American Airlines flight number duplication incident

> Live situation record from CLSTR: https://clstr.news/situations/american-airlines-flight-number-duplication-incident
> Updated: 2026-08-16T11:00:00.000Z. Sources: 52. Developments: 2.

An air traffic controller near Phoenix Sky Harbor International Airport prevented a potential mid-air collision between two American Airlines Boeing 737-800 aircraft. The incident occurred because both planes were operating under the identical callsign, AA2482, after the airline deployed a second aircraft to mitigate weather delays in Chicago.

The controller managed the situation by distinguishing the planes as “American 2482 on the arrival” and “American 2482 on the departure,” maintaining vertical separation of at least 1,000 feet. Aviation experts indicated the error likely resulted from a failure in the airline’s dispatch center to identify the overlapping flight numbers. Both American Airlines and the Federal Aviation Administration (FAA) have initiated investigations into the operational error.

## Timeline

### 2026-08-16: American Airlines aircraft avoid danger due to duplicate callsigns

An air traffic controller prevented a mid-air conflict after two American Airlines flights were assigned the same callsign, American 2482, due to operational scheduling errors.

6 sources. https://clstr.news/cluster/american-airlines-aircraft-avoid-danger-due-to-duplicate-callsigns

### 2026-08-14: American Airlines jets avoid collision after flight number mixup

A Phoenix air traffic controller prevented a potential collision between two American Airlines jets after both were mistakenly assigned the same flight number, AA2482, due to weather delays.

46 sources. https://clstr.news/cluster/american-airlines-flights-encounter-communication-close-call-in-phoenix

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Cite as: American Airlines flight number duplication incident. CLSTR, https://clstr.news/situations/american-airlines-flight-number-duplication-incident