SKYWATCH INCIDENT REPORT PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON Date: 02:38 12/08/2023 Callsign: SWA498 Origin: ATL Status: Closed Aircraft: B737 Destination: DAL POD: DEN Tail Number: New Destination: Reporting Facility: ZME Operator: SWA Operator Type: Commercial Paged: YES MOR Init: YES MOR ID: ZME-M-2023/12/07-0008 REMARKS Aircraft reported an unidentified aerial phenomenon while W bound at FL400, 35NM NW of MEI. The unknown phenomenon was lights moving at high rates of speed back and forth left to right, at approximately FL600. The UAP was not observed on ATC facility radar system. SKYWATCH INCIDENT REPORT | DATE: 2023-12-08T02:38 | POD: DEN | PAGE 1 of 1