Documents / Official release

65 HS1-834228961 62-HQ-83894 Section 006

Federal Bureau of Investigation · 271 pages · text by OCR

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.

  • p. 115 …Captain Mantell could never have reached the height at which the balloon was traveling." "Our studies…
  • p. 172 …30, 1947, with the understanding he might never have them returned. Blumenthal was advised the FBI…
  • p. 178 …had not been dreaming." He continued: 'I never heard the expression flying saucer until I escaped…
  • p. 179 …And the Oval wicket, though it needed watching, was never anything remotely wicked. Yorkshire have a…
  • p. 182 …30, 1947, with the understanding he might never have them returned. Blumenthal was advised the FBI…
  • p. 185 …30, 1947, with the understanding he might never have them returned. Blumenthal was advised the FBI…
  • p. 198 …He advised that the sightings reported in the last classification have never been satisfactorily explained. He…
  • p. 222 …Jesus Leoffreda Benson be salvaged your have never heard of Bentford doe he I effects the…
  • p. 243 ## (3) When you look at it from that point you can see they can never be…
  • p. 251 …cloud being charged electrically and a magnetic polarity being same as the interceptor it can never
  • p. 253 …being same as the interceptor it can never be overtaken, and would if persued gradually grow…
  • p. 260 …Since air lenses are almost never perfect, the world we see through them is distorted and…
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	**Evalu
68	1949/9 May	App 1430	1	R	Tucson, Arizona	SW to NE Silvery	None	6-10 secs	None	Round & flat	25' in diameter	750-1000 mph	Faded from view	(2)
69	12 May	2115 2130	1	VR	Alamogordo, New Mexico 3° or 4° above horizon White with greenish tinge	None	4 mins	None	2 fuzzy stars	1/4 diameter of full moon Vanished	(2)
70	16 May	App 1700	1	Unk	Tucson, Arizona	E to W	5000'	Horizontal	Black	None	8-10 secs	None	Round solid flat	3-4' in diameter	800-1000 MPH	Behind aircraft hangar	(2)
71	2 Jun	0040	1	R	Los Alamos, New Mexico	E to N	7000' - 10,000'	Descending	Green	Yes	1 sec	None	Ball of light {1}{3}
72	11 Jun	2057	1	R	Los Alamos, SW to NE	25° above horizon Green then red at end of flight	Yes	4-5 secs	None Size of star (1)
73	20 Jun	2010	1	R	Los Alamos, New Mexico	W to E Green turned orange red before vanishing	None	3 secs	None	Round Extinguished	(1)
74	20 Jun	2010	1	R	Los Alamos, New Mexico	W to E	Directly overhead Blue green	None	1-1/2 secs	None Vanished as the eating'd.	(1)

Cases discussed

About this file

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.