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PRIMARY CODE: UNIDENTIFIED AERIAL PHENOMENON
Date: 00:09 02/02/2023
Status: Closed
POD: DEN
Callsign: ASA18
Aircraft: B739
Reporting Facility: HQ DEN
Tail Number:
Operator: ASA
Origin: PDX
Destination: JFK
New Destination:
Operator Type: Commercial
Paged: NO
REMARKS
Aircraft reported a balloon between FL400-FL450, off the left side while east bound at FL350, 10 NM SE of BIL.