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
CONFIDENTIAL 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 Banner of Disappearance Evaluation 169 1950/7 Feb 1945 2000 2 R Between Tucumcari & Kirtland AFB, New Mexico Flat Trajectory Fireball white Yes 2-4 secs None Over 1,000 mph Faded out suddenly 170 15 Feb 1530 1 Unk Sandia Base, New Mexico From NW to W 45° downward above horizon Apparated red & green Yes 30 None Round That of a normal marble Like shooting star trail Faded out (1)(3) 171 18 Feb 0510 5 R Holloman AFB, New Mexico Climbed White and orange None 1 hr 44 mts None Round to cone shape Size of coffee cup at arm's length Stopped observation (2) 172 20 Feb 0530 2 Unk Holloman AFB, New Mexico Station- 1,000' above 9,000' mt. Stationary White None 5 mts None Round App size of 1/2 dollar held at arm's length Stationary Disappeared from view behind cloud (2) 173 24 Feb 1355 1 R Albuquerque, New Mexico To W or SW 20° to 23° above horizon Straight flight White None 1 1/2 mts None Round Compared in size to upper dark portion of moon as it rises in E 1 1/2 mts. to cover 2° (2)
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.