Pilot Report Unclassified Complete

237UAP00553

National Archives and Records Administration

Released

—

Published

—

Added to archive

Jun 14, 2026

Department

NARA

Original size

242 KB

External ID

ecd68cbba4ed198067b31bdd17cedcc2273a4f3fcc44d8cd9badf1abcdccd114

Confidence

85%

Credibility

90%

View original document ↗ hosted at the official government source

Intelligence summary

On September 15, 2023, American Airlines Flight 577 reported encountering unidentified aerial phenomena while flying over Liberal, Kansas. The UAP was described as lights emanating from unidentified objects at an altitude of 2,000 feet below the aircraft.

Tags & topics

Locations referenced

Location	Context	Confidence	Supporting text
Liberal, KS	Sighting Location	Medium	On September 15, 2023, American Airlines Flight 577 reported encountering unidentified aerial phenomena while flying over Liberal, Kansas. The UAP was described
LIBERAL, KS	Sighting Location	Medium	Date: 9/15/2023 12:13:00 AM (-05 CDT) Title: AAL577 UFO-UAP ACTIVITY 09-15-2023 Latitude: 37.050331909999997 Latitude: -100.92099899999999 PRELIM INFO FROM FAA
LIBERAL. THE UAP WAS DESCRIBED AS LIGHTS	Sighting Location	Unresolved	…-100.92099899999999 PRELIM INFO FROM FAA OPS: LIBERAL, KS/UFO-UAP ACTIVITY/0013C/KANSAS CITY ARTCC ADVISED AMERICAN 577, A321, DFW - DEN, REPORTED AN UNIDENTIF

Extracted timeline

Jun 15, 2023

Document Date (year hint)

Document Date (year hint) for 237UAP00553

Jun 14, 2026

Ingestion Date

Ingestion Date for 237UAP00553

Jun 14, 2026

Document Record Date

Document Record Date for 237UAP00553

Jun 14, 2026

Update Date

Update Date for 237UAP00553

Entities mentioned

American Airlines Flight 577 Liberal, Kansas

Full document text

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

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Date: 9/15/2023 12:13:00 AM (-05 CDT) Title: AAL577 UFO-UAP ACTIVITY 09-15-2023 Latitude: 37.050331909999997 Latitude: -100.92099899999999 PRELIM INFO FROM FAA OPS: LIBERAL, KS/UFO-UAP ACTIVITY/0013C/KANSAS CITY ARTCC ADVISED AMERICAN 577, A321, DFW - DEN, REPORTED AN UNIDENTIFIED AERIAL PHENOMENON 2,000 FEET BELOW ACFT WHILE NW BOUND AT FL340 OVER LIBERAL. THE UAP WAS DESCRIBED AS LIGHTS COMING FROM UNIDENTIFIED OBJECTS. NO EVASIVE ACTION TAKEN. WOC 7-3333 HM/MO Washington Operations Center DESCRIPTION