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.
Read from the scan by GLM-OCR; expect the odd misread word.
1. Date and Time of Observation: 15 Oct 1948 - night 2. Where Sighted: Fukuoka Area between Shigano Shima 33° 40' N by 132° 00' E and Fukuoka Shima 32° 45' N - 128° 40' East, Japan 3. Observer's Position: (i. e., ground, air, control tower, etc.) 4. Name and Address of Observer: 3/3 5. Occupation and/or hobbies: pilot and radar observer 6. Attention Attracted by: pip of unknown aircraft appearing on airborne radar 7. Number of Object( ) seen: 1 possibly 2 8. Size of Object(s): Could not be estimated 9. Color of Object(s): 10. Shape (Sketch if Possible) Could not be determined 11. Nature of Luminosity: (directed beam of light) 12. Altitude of Object: /8 (estimated) 15. Estimated Distance of object from Observer: 9 miles to 12,000 ft 14. Estimated Shape of Object: Much gre ter them 7-61. 15. Time in sight: n/s 16. Tactics: Bwaziva 17. Sound inside b: Object(s): x/s 18. Direction of Flight of Object(s) 19. Apparent Construction: 20. Effect on Clouds: I/3 11. Exhaust Trail Color of): No exhaust flames or trails seen 22. Honner of Disappearance: Accelerated speed and was lost to airborne radar scope 24. wind calm visibility 5 to 6 miles with heavy cloud coverage 12 to 14,000 ft Focularities Noted: High rate of acceleration, vertical scattered. 25. Summary of Incident: aseent, cognizance of Y-61's location at all times. (over) (See attnched page)
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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.