Documents / Official release
This U.S. Department of War file collects Project Sign era checklists and incident summary sheets for incidents 101 to 172. The largest item is the 18 February 1948 explosion over Norcatur, Kansas. For it the file gathers witness statements, speculative letters from Norman G. Markham, and Dr. Lincoln LaPaz's view that it was a genuine meteorite fall with curious aspects. Other entries cover B-29 crews, a two-decked wingless object over the Netherlands, a Turkish rocket report, a Moscow sighting, and George Gorman's 1 October 1948 Fargo encounter.
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.
“Hull”1 page
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 30 June 1948 2. Time 2140 3. Location S. Knoxville, Tenn 4. Name of observer Mr Tryus W. Setliff 5. Occupation of observer N/S 6. Address of observer Oakridge, Tennessee 7. Place of observation Knoxville, Tenn 8. Number of objects 1 9. Distance of object from observer N/S 10. Time in sight 3 seconds 11. Altitude 30,000 ft 12. Speed 1,000 MPH 13. Direction of flight Westerly 14. Tactics N/S 15. Sound N/S 16. Size N/S 17. Color Orange Color 18. Shape Ball 19. Odor detected N/S 20. Apparent construction Fire 21. Exhaust trails Bluish Color 22. Weather conditions N/S 23. Effect on clouds N/S 24. Sketches or photographs None 25. Manner of disappearance Over horizon to West 26. Remarks
Official release, from the pursue collection. The PDF is mirrored here; the original link is under it. The text was read from the page images by an OCR model; expect the odd misread word. 178 pages are in the text index: search them above, or from the library's search.