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PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON
Date: 08:20 10/28/2023
Status: Closed
POD: DEN
Reporting Facility: ZOB
Callsign: UAL541
Aircraft: B738
Tail Number:
Operator: UAL
Origin: DEN
Destination: BOS
New Destination:
Operator Type: Commercial
Paged: YES
REMARKS
Aircraft reported an unidentified aerial phenomenon off the left side while E bound at FL390, 40 NM W of BUF. The unknown phenomenon was 1 light that split into 2 lights flying in a crisscross pattern at approximately FL500 to FL600.