Pilot Report Unclassified Complete

237UAP00590

National Archives and Records Administration

Released

—

Published

—

Added to archive

Jun 14, 2026

Department

NARA

Original size

242 KB

External ID

bc434f1e3c35bc7761505a144c19e6378fbb79beece2d1b059ef47c4e2a65057

Confidence

85%

Credibility

90%

View original document ↗ hosted at the official government source

Intelligence summary

On December 23, 2023, United Airlines flight UAL1605 reported an unidentified aerial phenomenon (UAP) while en route from Los Angeles to Baltimore. The UAP exhibited erratic movement and was not detected on air traffic control radar.

Tags & topics

Locations referenced

Location	Context	Confidence	Supporting text
SPRINGFIELD, IL	Incident Location	Medium	Date: 12/23/2023 5:35:00 AM (-06 CST) Title: UAL1605 UFO-UAP ACTIVITY 12-23-2023 Latitude: 39.834861770000003 Latitude: -91.181694179999994 PRELIM INFO FROM FAA

Extracted timeline

Jun 15, 2023

Document Date (year hint)

Document Date (year hint) for 237UAP00590

Jun 14, 2026

Ingestion Date

Ingestion Date for 237UAP00590

Jun 14, 2026

Document Record Date

Document Record Date for 237UAP00590

Jun 14, 2026

Update Date

Update Date for 237UAP00590

Entities mentioned

UAL1605 A320 Springfield, IL

Full document text

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

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Date: 12/23/2023 5:35:00 AM (-06 CST) Title: UAL1605 UFO-UAP ACTIVITY 12-23-2023 Latitude: 39.834861770000003 Latitude: -91.181694179999994 PRELIM INFO FROM FAA OPS: SPRINGFIELD, IL/UFO-UAP ACTIVITY/0535C/KANSAS CITY ARTCC ADVISED UNITED 1605, A320, LAX - BWI, REPORTED AN UNIDENTIFIED AERIAL PHENOMENON OFF THE LEFT SIDE WHILE E BOUND AT FL350Â 80 W SPI. UAP WAS LIGHTS MOVING ERRATICALLY TRAVELING IN RANDOM DIRECTIONS AT UNKNOWN ALTITUDE. UAP WAS NOT OBSERVED ON ATC RADAR. WOC 7-3333 MO/DJ Washington Operations Center DESCRIPTION