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
111th CIC Detachment, FAO #8, P.O. Box 379, Knoxville, Tennessee OBJECTS SIGHTED OVER OAK RIDGE, TENNESSEE (In compliance with letter AJACI-360.33 General, dated 15 November 1950. Headquarters, Third Army, Subject; Unconventional Aircraft, the following is submitted.) A. Location and Time of Sighting: On 1247 hours on 20 December 1950. B. Weather at Time of Sighting: At 1200 hours on 20 December 1950; Ceiling - 2700 feet; broken overcast; Seven miles visibility; Temperature - 37 degrees F; Dow Point - 31 degrees; and Wind - Calm. C. Names, Occupations, and Addresses of Witnesses: Personnel of the 663rd AC &C Squadron, and the 5th AN Fighter Squadron, McGhee Tyson Airport, Knoxville, Tennessee D. Photographs of Objects, if available: None E. Object Sighted: The radar log of the 663rd AN and C Squadron, McGhee Tyson Airport, Knoxville, Tennessee contained the following entry: "20 December 1950. 1247 hours. Small paint in area (Oak Ridge Controlled Area). Very, very slow. Made perfect intercept (with F-82 Fighter aircraft) and orbit surrounding small smoke cloud." F. Any other pertinent information: This report is made because of its possible aid in determining the identity of the numerous unidentified objects sighted over Oak Ridge, Tennessee SOURCE: Personnel of 663rd AC &W, Squadron, McGhee Tyson, Knoxville, Tennessee, and the log of the 663rd AC&W Squadron. 62-83994-265 ENCLOSURE
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.