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
# DEPARTMENT OF THE AIR FORCE HEADQUARTERS UNITED STATES AIR FORCE WASHINGTON 25, D. C. AFOIO-CC-1 8 September 1950 SUBJECT: Reporting of Information on Unconventional Aircraft TO: Commanding Generals, Major Air Commands, ZI and Overseas All United States Air Attaches 1. The United States Air Force has a continuing requirement for the reporting and technical analysis of observations of unconventional aircraft which might indicate an advance in technological progress of a foreign power. An unconventional aircraft, within the meaning of this directive, is defined as any aircraft or airborne object which by performance, aerodynamic characteristics, or unusual features, does not conform to any presently known aircraft type. 2. It is desired that information on unconventional aircraft be reported in the following manner: a. A separate report of each incident will be forwarded. No information other than that bearing on the unconventional aircraft will be included in this report. b. Priority of transmission accorded the report will be that appropriate in the judgment of the forwarding agency, according to its apparent authenticity and importance as intelligence. c. Reports will be forwarded to Commanding General, Air Materiel Command, Attention: MCIS. d. Reports forwarded by electrical transmission will include, as far as possible: (1) A brief description of the object(s); its shape, size, color, number, formation if more than one, aerodynamic features, trail or exhaust, propulsion system, speed, sound, maneuvers, manner of disappearance, and other pertinent or unusual features. (2) Time sighted in 24-hour clock zonal time, and length of time observed.
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.