box Incident Summaries 101-172

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.

defined form gave the appearance of a large object at a great distance. The statements of other witnesses to this incident are contained in reports 112a and 112b.

All witnesses agreed that the object was very high, moved faster than any known aircraft, possessed a rounded, indistinct form, and disappeared suddenly rather than fading away in the distance. It was under observation 1/2 minutes or slightly less. It was definitely not a balloon, and apparently not manned, judging from the violent maneuvers which were performed at a high rate of speed.

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