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.
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INCIDENT SUMMARY GREET Incident No. 207A 1. Date and Time of Observation: 18 Nov 48 2200 hours 2. Where Sighted: East over Andrews AF Base, directly over Comp Springs, Md 3. Observer's Position: Air (i, e., ground, air, control tower, etc.) 4. Name and Address of Observer: Henry G. Combs, 2d Lt, USAFR 5. Occupation and/or hobbies 511 S. Capitol St., Washington, D. C. 6. Attention Attracted by: movement of lone moving lighted object 7. Number of Object(-) Seen: 1 8. Size of Object(s): Smaller than a T-6 type aircraft 9. Color of Object(s): dull gray (whitish grey) 10. Shape (Sketch if Possible) Oblong ball, no wings or tail surfaces (oblong 11. Nature of Luminosity: Seemed to have had one continuous glowing white light (directed beam of light?) Could not determine whether source of light eminated from entire object or was exhaust type in nature. 12. Altitude of Object: 1700 ft to around 7500 ft (estimated) 13. Estimated Distance of Object from Observer: Approx 300 to 400 feet on one instance 14. Estimated Speed of Object: 80 to 600 MPH 15. Time in sight: 10 to 12 minutes 16. Tactics: Evasive controlled tactics and ability to perform tight circle quick variation of air speed. Vertical ascents. Evasive movements 17. Sound made by Object(s): N/S 18. Direction of Flight of Object(s) East to West in circular pattern 19. Apparent Construction: metallie 20. Effect on Clouds: N/S 21. Exhaust Trail Color of): no exhaust flame 22. Mannar of Disappearance: I/S 23. Weather Conditions at Time of Sighting: CAVU, no smoke, haze or fog. Full moon. 24. Peculiarities Noted: No wings or tail structure; extreme maneuverability highly evasive movements, high rate of acceleration. 25. Summary of Incident: (over) (See attached 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.