Documents / Official release
This Federal Bureau of Investigation file section, 62-HQ-83894 Section 6 (serials 246 to 301), collects FBI memoranda and correspondence from 1950 to 1952 on flying saucers. It covers green fireballs and discs seen near sensitive installations in New Mexico, Dr. Lincoln LaPaz's analysis, and the Air Force's Land-Air study known as Project Twinkle. It also holds an OSI summary, a USAF directive on reporting unconventional aircraft, a dissolving object reported by Philadelphia police, and letters from members of the public.
From the source:Release of 2026-05-08 Incident: N/A, N/A. The FBI's 62-HQ-83894 case file includes investigative records, eyewitness testimonies, and public reports concerning Unidentified Flying Objects and flying discs documented between June 1947 and July 1968. The records include high-profile incident accounts, photographic evidence from sites like Oak Ridge, TN, and technical proposals regarding potential propulsion systems. Additional topics include convention programs, researcher accounts, and extensive media coverage from the period. This file is partially posted on FBI vault with more redactions and some pages missing. Included here is the complete case file with several newly declassified pages and only minor redactions.
“Office of Special Investigations”19 pages
Summary of Sightings of Unknown Aerial Phenomena, 17th District PSI (cont) Number Date Time Number of Observers*Reliability of Observers General Area of Occurrence Apparent Direction of Flight Apparent Altitude Course Horizontal or Vertical Color Train or Trail Duration of Observation Sound Shape Apparent Size Apparent Speed Blower of Disappear- 12 194811 Dec 1930 Unk Hood River, Oregon Blue & white Yes Flash Flash w/r like thun 13 12 Dec 2102 5 VR 15 miles south of Las Vegas, New Mexico E to W 3-10 miles Horizontal Very bright green 2.1-2.3 secs None Ball Magnitude-4 Drove into 3 or 4 small fragments & disappeared 14 20 Dec 2054 4 R Los Alamos New Mexico W to E Great height descending 20° to the horizon Pale green or bluish white Yes 1-1/2 secs None Ball Basketball High speed Disappeared behind mountain 15 28 Dec 0431 1 R Los Alamos, New Mexico N to S Descended from high alt to 6000' Descending in vertical path white Sev. secs None Star Star Blower than falling star Disappeared w/greenish flash 16 19496 Jan 1730 1 Unk Albuquerque New Mexico SE to NW 1500' - 2000' Horizontal Bright white None Diamond App. 2' long Much faster than a jet Disappeared 17 6 Jan 0310 1 R Los Alamos, New Mexico E to W 3 to 5° from observer Horizontal Brilliant green 2 secs None High speed Disappeared behind mountainous horizon 18 30 Jan 1754 App 200 Unk El Paso, Texas NW to SE 30° - 50° above horizon Horizontal Green None Ball Broke into pieces
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. 271 pages are in the text index: search them above, or from the library's search.