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
THE INSPECTOR GENERAL USAF 17TH DISTRICT OFFICE OF SPECIAL INVESTIGATIONS KIRTLAND AIR FORCE BASE, NEW MEXICO File No: (24-8)-28 DR/ms 25 May 1950 SUBJECT: Summary of Observations of Aerial Phenomena in the New Mexico Area, December 1948 - May 1950 TO: Brigadier General Joseph F. Carroll Director of Special Investigations Headquarters USAF Washington 25, D. C. 1. In a liaison meeting with other military and government intelligence and investigative agencies in December 1948, it was determined that the frequency of unexplained aerial phenomena in the New Mexico area was such that an organized plan of reporting these observations should be undertaken. The organization and physical location of units of this District were most suitable for collecting these data, therefore, since December 1948, this District has assumed the responsibility for collecting and reporting basic information with respect to aerial phenomena occurring in this general area. These reports have been distributed to the Air Materiel Command, USAF, in accordance with Air Intelligence Requirements No. 4, and to other interested military and government agencies. 2. There is attached, as a part of this summary, a compilation of aerial phenomena sightings that have occurred mostly in the New Mexico area and have been reported by this District Office subsequent to December 1948. This compilation of sightings is not a complete record of all reported observations, but includes only those in which sufficient information was available to justify their inclusion. The observers of these phenomena include scientists, Special Agents of the Office of Special Investigations (IG) USAF, airline pilots, military pilots, Los Alamos Security Inspectors, military personnel, and many other persons of various occupations whose reliability is not questioned. This compilation sets forth the most important characteristics with respect to each observation and evaluates each sighting into one of three classifications, (1) green fireball phenomenon, (2) disc or variation, and (3) probably meteoric. ENCL INDEXED - 87 3. There is also attached an analysis of the green fireball occurrences in this area made by Dr. Lincoln LaPaz. Dr. LaPaz is the Dissly
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.