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.
“Turner”1 page
## CONFIDENTIAL
CHECK-LIST - UNIDENTIFIED FLYING OBJECTS
1. Date 31 July 48
Incident # 152
2. Time 0825
3. Location Indianapolis, Indiana (South-Central part)
4. Name of observers Mr. & Mrs Vernon Swigert
5. Occupation of observors an electrician and housewife
6. Address of observors 2020 Boyd St., Indianapolis, Indiana
7. Place of observation As above -
8. Number of objects 1
9. Distance of object from observer N/S
10. Time in sight 10 seconds
11. Altitude 2,000 ft
Speed 1800 MPH
Direction of flight $ 9 0^{\circ} $ - east
14. Tactics N/S
Sound None
Sizo - 20 ft in dia. and approx 6 to 8 ft in height
in center - Ratio about 3:1
Color white with no shine
Shapo like a cymbal
Odor detected N/S
20. Apparont construction N/S
Exhaust trails None
Weather conditions Sky clear
Effect on clouds N/S
Skotches or photographs 1
Manner of disappearance N/S
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.