Pilot Report Unclassified Complete

237UAP00631

National Archives and Records Administration

Released
Published
Added to archive
Jun 14, 2026
Department
NARA
Original size
242 KB
External ID
4ae8636a62145c7fffc9ad7a4a6421c2142578a23fea55cf28da40aa9ec0d812
Confidence
85%
Credibility
90%

View original document ↗ hosted at the official government source

Intelligence summary

On June 15, 2024, United Airlines flight 1835 reported encountering a 4-foot red and blue unidentified aerial phenomenon (UAP) while flying southbound at 11,000 feet near Denver, Colorado. The UAP was not detected on air traffic control radar, and no evasive action was taken by the flight crew.

Tags & topics

Air traffic controlAviation SafetyUAP aviation incidentPilot ReportUAPUFO

Locations referenced

LocationContextConfidenceSupporting text
Denver, CO Incident Location Medium On June 15, 2024, United Airlines flight 1835 reported encountering a 4-foot red and blue unidentified aerial phenomenon (UAP) while flying southbound at 11,000
DENVER, CO Incident Location Medium Date: 6/15/2024 4:18:00 PM (-06 MDT) Title: UAL1835 UFO-UAP ACTIVITY 06-15-2024 Latitude: 39.861666659999997 Latitude: -104.6731667 PRELIM INFO FROM FAA OPS: DE

Extracted timeline

Jun 15, 2024

Document Date (year hint)

Document Date (year hint) for 237UAP00631

Jun 14, 2026

Ingestion Date

Ingestion Date for 237UAP00631

Jun 14, 2026

Document Record Date

Document Record Date for 237UAP00631

Jun 14, 2026

Update Date

Update Date for 237UAP00631

Entities mentioned

Full document text

479 characters, transcribed via OCR. Errors reflect the source scan. Compare with the original ↗

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Date: 6/15/2024 4:18:00 PM (-06 MDT) Title: UAL1835 UFO-UAP ACTIVITY 06-15-2024 Latitude: 39.861666659999997 Latitude: -104.6731667 PRELIM INFO FROM FAA OPS: DENVER, CO/UFO-UAP ACTIVITY/1622M/DENVER TRACON ADVISED UNITED 1835, A319, DEN - TYS, REPORTED A 4-FOOT RED AND BLUE UAP BELOW ACFT WHILE S BOUND AT 11,000 FEET 10 S DEN. NO EVASIVE ACTION REPORTED. UAP NOT OBERSVED ON ATC RADAR. WOC 7-3333 DJ/JE Washington Operations Center DESCRIPTION