Pilot Report Unclassified Complete

237UAP00583

National Archives and Records Administration

Released

—

Published

—

Added to archive

Jun 14, 2026

Department

NARA

Original size

242 KB

External ID

29af670ce479a6f3da42667673add78335b3e2cd7cf136e64c6f8bb3d9da5b88

Confidence

85%

Credibility

90%

View original document ↗ hosted at the official government source

Intelligence summary

On December 2, 2023, a Gulfstream GLF4 aircraft reported an unidentified aerial phenomenon while flying at FL430 near O'Neill, Nebraska. The incident was communicated to the Denver ARTCC, and no evasive action was taken by the crew.

Tags & topics

Locations referenced

Location	Context	Confidence	Supporting text
O'Neill, NE	Incident Location	Medium	On December 2, 2023, a Gulfstream GLF4 aircraft reported an unidentified aerial phenomenon while flying at FL430 near O'Neill, Nebraska. The incident was commun
O'NEILL, NE	Incident Location	Medium	Date: 12/2/2023 9:15:00 PM (-06 CST) Title: N461GT UFO-UAP ACTIVITY 12-02-2023 Latitude: 42.746974770000001 Latitude: -99.740635990000001 PRELIM INFO FROM FAA O

Extracted timeline

Jun 15, 2023

Document Date (year hint)

Document Date (year hint) for 237UAP00583

Jun 14, 2026

Ingestion Date

Ingestion Date for 237UAP00583

Jun 14, 2026

Document Record Date

Document Record Date for 237UAP00583

Jun 14, 2026

Update Date

Update Date for 237UAP00583

Entities mentioned

N461GT O'Neill, NE Unidentified Aerial Phenomenon

Full document text

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

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Date: 12/2/2023 9:15:00 PM (-06 CST) Title: N461GT UFO-UAP ACTIVITY 12-02-2023 Latitude: 42.746974770000001 Latitude: -99.740635990000001 PRELIM INFO FROM FAA OPS: O'NEILL, NE/UFO-UAP ACTIVITY/2115C/DENVER ARTCC ADVISED N461GT, GULFSTREAM GLF4, REPORTED AN UNIDENTIFIED AERIAL PHENOMENON BELOW THEM AT THE 1 O'CLOCK POSITION WHILE W BOUND AT FL430 57 WNW ONL. NO EVASIVE ACTION TAKEN. NO LEO NOTIFICATION REPORTED. WOC 7-3333 MC/JW Washington Operations Center DESCRIPTION