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 117 1949/27 Sep 0300 1 Unk Sandia Base, New Mexico SE to NW 150°-200° above horizon Traveling in arc toward earth Bright green None 2 secs None Round Same size as perimeter fence light at distance of about 200 yds. 450° in 2 secs. Brighten then went out 118 27 Sep 0130 1 Unk Sandia Base, New Mexico S to N 200° above horizon Made a gentle arc toward earth Dark blue Yes 2 secs None Coni-icle w/tail twice its diameter Looked like a sky rocket 500° in 2 secs. Burnt out 119 27 Sep 0130 1 Unk Sandia Base, New Mexico 450° above horizon Moving tangent to earth Green None 1 sec None Round Fist at arm's length 200° in 1 sec Burnt out 120 30 Sep 2257 1 Unk Sandia Base, New Mexico S to W 550° to horizon Yellow orange None 2-3 secs None Slightly larger than shooting star 200-300 mph (1) 121 2 Oct 2110 1 R Los Alamos, New Mexico 20,000-30,000' Went up & then down Bright green Yes 3 secs (1) 122 6 Oct 1745 1 Unk Mescalero, New Mexico 151/20 above horizon Descended in slight arc Dark green None 30 secs None Round Big ball Disappeared behind hills (1)
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.