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PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON
Date: 09:25 10/04/2023
Status: Closed
Callsign: UAL476
POD: DEN
Aircraft: B739
Reporting Facility: ZDV
Tail Number:
Operator: UAL
Paged: YES
Origin: SFO
Destination: ORD
New Destination:
Operator Type: Commercial
MOR Init: YES
MOR ID: ZDV-M-2023/10/04-0001
REMARKS
Aircraft reported an unidentified aerial phenomenon off the left side at FL350, 42 NM NE of BFF. The unknown phenomenon was three bright white lights, not moving or changing altitude, blinking left to right and right to left.