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 Phenomona, 17th District OSI (cont) Number Date Time Number of Observers *Reliability of Observers General Area of Occurrence Apparent Direction of Flight Apparent Altitude Course Horizontal to Vertical Color Train or Trail Duration of Observation Sound Shape Apparent Size Apparent Speed Manner of Disappearance 140 1949/14 Oct 2021 2 R Albuquerque, New Mexico N to S Horizontal Red orange Yes 10 secs None Round 1/3-1/4 size of moon Broke into 2 pieces & disappeared 141 14 Oct 1410 1415 1 Unk Los Alamos, New Mexico S to N Front-green & silver Rear-Pale blue Yes 3-4 secs None 1/8 size of full moon 500 mph or more 142 21 Oct 2130 1 Unk Roswell, New Mexico SE to NW 30° above horizon Very bright white None 20-30 mts None Unknown 143 22 Oct 0228 1 R Los Alamos, New Mexico MW to SE On horizon Bright green 2 secs None 4 times size of a flare 150 mph Disappeared behind a hill 144 22 Oct 0220 1 R Los Alamos, New Mexico Vertical 50-100 ft. Green 1 sec None Like flare Small Went out 145 16 Nov 1950 1 R Los Alamos, New Mexico Disappeared to N 2 objects bluish green None Stationary but disappeared with speed of meteor Disappeared from view 146 19 Nov 2152 1 R Los Alamos, New Mexico Vertical Green then yellow 2 secs None
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.