Record 079 · National Security Agency
Exploitation Report: Fragment, Metal, Recovered in the Republic of the Congo, Origin Believed to be an Unidentified Flying Object
National Security Agency · United States
Ledger illustration of the record — not a scan of the original paper. — Night Ledger illustration of the file
The report details laboratory examination of a 2x2x1 inch metallic fragment claimed to originate from an unidentified flying object. Analysis determined the material was silicon-steel laminate, consistent with components from electrical equipment or transformers. Microstructural examination indicated exposure to extremely high temperatures. The report concludes the fragment was terrestrial in origin, part of a man-made electrical component, with no evidence supporting an extraterrestrial source or anomalous properties. It explicitly evaluates the material against the UFO claim and finds nothing inconsistent with conventional technology.
Public file: National Archives Catalog (RG 615)
