Originally published at: Controller Handles Two American Flights With Identical Call Signs
Duplicate call signs put two American Airlines flights on the same frequency near Phoenix.
There seem to be several missed hoops: the AA dispatch/ops tracking system not preventing duplicate callsigns, the FAA flight plan system accepting them and it would seem to have been within the rules for the controller to assign a different callsign to one of the aircraft.
I read that the airline’s normal procedures:
- specified using different flight number for return flight from end of route IF it was departing before inbound arrived
- otherwise used same flight number which is odd practice
Airline used another airplane for the departure instead of waiting for the inbound airplane.
Excellent work by controller - sharp observation, quick thinking on addressing each flight differently.
Would transponder code be different, to help controllers?