SKYWATCH INCIDENT REPORT PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON Date: 13:02 01/27/2024 Callsign: EVA008 Origin: RCTP Status: Closed Aircraft: B777 Destination: SFO POD: DEN Tail Number: New Destination: Reporting Facility: ZOA Operator: EVA Operator Type: Commercial Paged: YES REMARKS Aircraft reported an unidentified aerial phenomenon off the 12 o'clock while E bound at FL370, 450 NM W of SFO. The unknown phenomenon appeared to be dogfighting at approximately FL500. The UAP was not observed on ATC facility radar system. SKYWATCH INCIDENT REPORT | DATE: 2024-01-27T13:02 | POD: DEN | PAGE 1 of 1