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 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 Evaluation 195017 Mar 0307 1 R Los Alamos, New Mexico Straight down Straight down Orange & green Yes 2-21/2 secs None Tremendous Explosion on impact with earth or disintegration 196 17 Mar 0445 1 R Los Alamos, New Mexico Formed an arc Formed an arc Green None 5 secs None Round Quite small Free fall Fell toward earth 197 17 Mar 0310 1 R Los Alamos, New Mexico Seemed to climb, change color, start down & disappear Green turning to yellow None 5 secs None Spherical 1/4 size of moon Moderate Suddenly 198 17 Mar 0307 1 R Los Alamos, New Mexico Earthward Earthward Yes 3 secs None Round 1/4 size of full moon Extremely fast Plunged to earth & 2 explosions were noted prior to disappearance 199 20 Mar 0115 1 Unk Clovis, New Mexico From WHW Above 12,000' White w/light blue Yes 1-2 secs None Spherical 2,000 mph Disappeared from view
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.