FBI case file 62-HQ-83894.

documentedsource_actorAtomic Energy Commission / ERDA (DOE progenitors)

18-section FBI UFO/'flying disc' dossier, June 1947-July 1968; contains Oak Ridge photographic + radar material released via PURSUE 2026.

The FBI's headquarters UFO case file spanning June 1947 to July 1968. It carries investigative records, eyewitness testimony, public reports, photographic evidence (incl. Oak Ridge), and technical propulsion proposals. Serial 153 is the Knoxville communication on the July 1947 Oak Ridge 'flying saucer' photos. Previously partially on the FBI Vault with heavy redaction; the 2026 PURSUE copy has fewer redactions and some new pages.

Connected entities

FBI (Federal Bureau of Investigation).FBI Vault prior release of 62-HQ-83894 (pre-2026).Oak Ridge (X-10 / Y-12 / K-25, TN).Oak Ridge Knoxville-Radar Detections (Mar 1–2 1950).Pentagon Oak Ridge UAP Declassification (2026).Project Blue Book.PURSUE Release 1 (8 May 2026).