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.
“Socorro, New Mexico”1 page
Read from the scan by GLM-OCR; expect the odd misread word.
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 105 1949/12 Aug 0445 1 Unk Killeen Base, Texas SE to NJ 30° above horizon headed down Headed down Reddish Yes 2-3 secs Yes Trail of flame Fairly long streak of flame Faded away 106 14 Aug 2135 1 R Alamogordo, New Mexico Appeared 25° Disappeared at 12° 10-15° off vertical Reddish orange Yes 2 secs None Round Larger than Venus Disappeared 107 20 Aug 2130 2 Unk Douglas, Arizona N to S 8,000'-10,000' Flat trajectory None 6-10 secs None Round to oblong like inverted saucer About size of single engine airplane 3500 to 4500 mph Disappeared in distance 108 21 Aug 21152150 5 Unk Nogales, Arizona 45° at low level 90° at high level Horizontal to earth's surface Dull orange None 10 secs None Nafer App size of volley ball 10 times speed of jet planes Disappeared in space 109 26 Aug 1345 1 R Davis-Monthan AFB, Arizona SE to NJ App. 50,000 Horizontal at 50,000' Brownish hazy color None 60 secs Similar to triangle with rounded edges Est. to be app 1/4 of inch when observed at 3 ft. Terrific rate of speed Faded from view
Official release, from the pursue collection. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 271 pages are in the text index: search them above, or from the library's search.