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 135 1949/11 Oct 1045 1100 2 Unk Alamogordo, New Mexico NV to SE If size of B-29 appeared to be 150,000' White None 10-15 secs None Round dish shape 2" in diameter at arm's length Very fast compared w/falling star Faded from view 136 12 Oct 1115 3 Unk Roswell, New Mexico S to NE 3,500' Smooth arc White (silver) None 45-60 secs None Round probably elliptical Faster than jet aircraft Went beyond range of vision 137 12 Oct 1115 3 Unk Alamogordo, New Mexico Appeared from S & veered off to NE If size of B-29 appeared to be 35,000' Smooth arc White or aluminum None 45-60 secs None Round ball 35,000' 4" in diameter 1,500 mph Faded from view 138 12 Oct 1340 4 R Tucson, Arizona From NE to SW 30,000' Horizontal White or silver None 15 secs None Round 50 - 100' in diameter 1,000 mph Faded from view 139 14 Oct 1420 3 R Los Alamos, New Mexico W to E 20,000' Level flight just above horizon Greenish blue-white trail Yes 2 secs None Round Appeared as a 12" disc Burned 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.