SKYWATCH INCIDENT REPORT PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON Date: 14:39 02/03/2023 Callsign: AAL2574 Origin: STL Status: Closed Aircraft: B738 Destination: PHX POD: DEN Tail Number: New Destination: Reporting Facility: ZDV Operator: AAL Operator Type: Commercial Paged: NO REMARKS Aircraft reported a large balloon off the right side while W bound at FL360, 30NM W of RBA. The balloon was at approximately FL500 and above. SKYWATCH INCIDENT REPORT | DATE: 2023-02-03T14:39 | POD: DEN | PAGE 1 of 1