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.
“Los Angeles Times”1 page
Read from the scan by GLM-OCR; expect the odd misread word.
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS
Incident # 163
1. Date 22 July 48
2. Time hour before dark
3. Location Van Nuys, Calif
4. Name of observer Capt Henry Glover & wife (Ofd-Res)
5. Occupation of observer Ordnance Reserve Officer
6. Address of observer 8531 Variel Ave., Canoga Park, Calif
7. Place of observation Van Nuys, Calif.
8. Number of objects 1
9. Distance of object from observer 2000xft overhead
Time in sight X/2x about an hour
Altitude great height
Speed N/S
Direction of flight toward the sun from the East or West
Tactics traveled a vertical arc of about 25° or more
15. Sound N/S
16. Size of weather balloon at 2000 ft
17. Color bluish luminescence like fluorescent lamp which gradually changed to orange color at dusk
18. Shape round tending to spherical
Odor detected N/S
20. Apparent construction N/S
Exhaust trails N/S
22. Weather conditions CAVU ground temperature 70-75 $ ^{\circ} $
Effect on clouds N/S
Skotches or photographs None
25. Manner of disappearance snapped off like a lamp when you throw switch
26. Romarks; (Over) 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. 178 pages are in the text index: search them above, or from the library's search.