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 the findings of Uniquest Aerial Drones, 17th District CSI (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 Lunar Disc 5 1946/24 Oct Night 1 Unk Phoenix, Arizona E to N Green 75 Mts. Star Very slow Became very bright and fell apart 6 5 or 4 Nov App 2200 1 R Vaughn, New Mexico 400' - 500' Descending slowly in vertical manner Bright white None Round Larger than basketball Descending slowly Exploded 7 25 Nov App 2200 1 R Vaughn, New Mexico 400' - 500' Descending slowly in vertical manner Bright white None Round Larger than basketball Descending slowly Exploded 8 5 Dec 2135 2 R Las Vegas, New Mexico N to E Slightly above 9,000' Horizontal slightly descending Whitish orange Few secs Disappeared 9 5 Dec App 2200 2 R Albuquerque, New No movement noted 10,500' Parabolic curve Green Yes 2 secs None Round Faded out 10 0 Dec 2255 1 Unk Sandia Base, New Mexico E to W Slight falling arch Green Yes 2--3 secs None Round 1/3 diameter of moon Rapid Vanished 11 8 Dec 1855 2 VR Las Vegas, New Mexico ENE to NSW 13,500' Horizontal Bright green Yes 2 secs None Larger than a flare Rapid rate of speed Faded out
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.