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This PDF is a Department of War file of incident reports on Unidentified Flying Objects, written under the 1948 Flight Service Regulation 200-4. The reports cover sightings witnessed by military sources and some Civilian Aviation Authority sources, with an incident date listed as January 9, 1950.

The reports typically record dates, locations, weather, altitude, and detailed descriptions of appearance and movement. The file also includes messages from the Military Air Transport Service and Army Airways Communications System, additional military intelligence reports, several diagrams, and a weather station report from Japan.

Declassified by the Department of War under the PURSUE UAP records release (tranche of 5/8/26).
Agency: Department of War
Incident: 1/9/50, N/A
Document ID: 342_hs1-416511228_box186_319.1-flying-discs-1949