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.
“Headquarters”18 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 90 1949/6 Aug 2030 1 Unk Alamogordo, New Mexico N Constant slight curve earthward White (bluish) Yes 1 sec None Round App smaller than clenched fist Similar to falling star Went out 91 6 Aug 2020 1 Unk Albuquerque, New Mexico Descending to earth vertically 15° above horizon Descending to earth vertically Green None 1-11/2 secs None Round to pear shape 500 watt bulb about 1/5 mile away 10° in 11/2 secs at 2 miles Dissipated 92 6 Aug 2000 1 Unk White Sands, New Mexico 40° above horizon Straight line to earth Observer color blind None 1 sec None Round Half size of finger-nail at arm's length Slightly faster than ordinary falling star Disappeared behind sand dune 93 6 Aug 2000 1 R Alamogordo, New Mexico 200° 30° above horizon Long slow curve to earth Bluish green Yes 1 sec None Round Tip of thumb at arm's length Burned out 94 10 Aug 0010 2 Unk Killeen Base, Texas E to W 30° angle headed down 30° angle headed down Blue Yes 3-4 secs None Oval Head size Sudden disappearance 95 10 Aug 2030 1 Unk Killeen Base, Texas N to S 30° above horizon White Yes 5 secs None Similar to comet Disappeared
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.