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.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 24 July 48 Incidort # 144b 2. Time 0230 3. Location Between Blackstone, Va. and Greensboro, N..C. 4. Name of observer Capt Perry R. Mansfield, 5. Occupation of observer Capt on 571/23 EAL 6. Address of observer EAL 7. Place of observation Between Blackstone, Va. and Greensboro, N. C. 8. Number of objects 1 9. Distance of object from observer N/S 10. Time in sight 3 seconds 11. Altitude N/S 12. Spood meteoric 13. Diroction of flight southerly 14. Tactics traveling horizontally 15. Sound N/S 16. Sizo N/S 17. Color N/S 18. Shape N/S 19. Odor detected N/S 20. Apparent construction N/S- 21. Exhaust trails N/S 22. Weather conditions CAVU 23. Effect on clouds N/S 24. Sketches or photographs None 25. Manner of disappearance "died out" in the distance 26. Remarks: (over)
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.