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 Phenomona, 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
140	1949/14 Oct	2021	2	R	Albuquerque, New Mexico	N to S Horizontal	Red orange	Yes	10 secs	None	Round	1/3-1/4 size of moon Broke into 2 pieces & disappeared
141	14 Oct	1410 1415	1	Unk	Los Alamos, New Mexico	S to N Front-green & silver Rear-Pale blue	Yes	3-4 secs	None 1/8 size of full moon	500 mph or more
142	21 Oct	2130	1	Unk	Roswell, New Mexico	SE to NW	30° above horizon Very bright white	None	20-30 mts	None Unknown
143	22 Oct	0228	1	R	Los Alamos, New Mexico	MW to SE	On horizon Bright green 2 secs	None 4 times size of a flare	150 mph	Disappeared behind a hill
144	22 Oct	0220	1	R	Los Alamos, New Mexico	Vertical	50-100 ft. Green 1 sec	None	Like flare	Small Went out
145	16 Nov	1950	1	R	Los Alamos, New Mexico	Disappeared to N 2 objects bluish green None Stationary but disappeared with speed of meteor	Disappeared from view
146	19 Nov	2152	1	R	Los Alamos, New Mexico	Vertical Green then yellow 2 secs	None

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.