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.
“Gray”2 pages
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS 1. Date 30 Aug 48 Incident # 166 2. Time 20,000 hours or 8:00 P.M. 3. Location Los Angeles, Calif. 4. Name of observer S/Sgt Leroy H. Estes 5. Occupation of observer S/Sgt 6. Address of observer 1301 W. Olympic Blvd., Los Angeles 7. Place of observation 1301 W. Olympic Blvd. Los Angeles, Calif. 8. Number of objects 1 9. Distance of object from observer N/S 10. Time in sight N/S 11. Altitude estimated to be well over 20,000 ft. Speed thought to be well over 700 MPH 13. Direction of flight West to East 14. Tactics none - flew level course 15. Sound No sound 16. Sizo Larger than B-29 17. Color silver 18. Shape V-2 rocket 19. Odor detected N/S 20. Apparent construction rocket - like Exhaust trails blue exhaust trail Weather conditions W/S Clear Effoct on clouds N/S Sketches or photographs None Manner of disappearance N/S Romarks: (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.