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PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON
Date: 04:39 02/04/2023
Status: Closed
POD: DEN
Reporting Facility: ZLC
Callsign: UAL1580
Aircraft: B738
Tail Number:
Operator: UAL
Origin: ORD
Destination: CYVR
New Destination:
Operator Type: Commercial
Paged: YES
REMARKS
Aircraft reported an unidentified aerial phenomenon above them while WNW bound at FL380, 60NM E of BIL. The unknown phenomenon had lights and was reported as orbiting. No evasive action reported. AWO advised.