Documents / Official release
This Air Materiel Command file, released by the U.S. Department of War, holds Incident Summary Sheets 173 through 233, sent under a 1949 transmittal. Most of the sheets record sightings of unidentified aerial objects in 1948 and early 1949. They cover Santa Fe, New Mexico, San Pablo, California, Honolulu, Kentwood, Louisiana, and Jackson, Mississippi. Each sheet gives the observer's details and the object's size, speed and shape, and often an investigator's note on how reliable the witness seemed. The file ends with a blank guide for investigating reports, including radar sightings.
From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.
“Anderson”2 pages
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## Incident: 209 Unidentified aircrft observed at 1043 14 Nov 1948 over Army Observation Post #1 at 37° 57' N - 125° 31' E, in South Korea, flying east to west at an altitude of 5000 feet. The same aircrft was sighted by army observation post #2 37° 51' N - 125° 17' E, 4. 37° 57' N - 125° 26' E and 5. 37° 56' N - 125° 29' Subject aircraft circled observation number 2, then needed portu.. Aircraft was twin engine bomber type, and is believed definite, to have been soviet.
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Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 144 pages are in the text index: search them above, or from the library's search.