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.
“Hill”9 pages
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 **Eval 200 1950/21 Mar 1320 1 Unk Sandia Base, New Mexico E to SW App 45° above horizon 2 objects silver None 10 mts None Round App size of dime at arm's length Excessive to jet flight Gradually faded from view (2) 201 21 Mar 1300 1 Unk Sandia Base, New Mexico NE to SE 40,000-60,000' Varied from shiny silver to shady gray None 30 mts None Round Size of end of thumb at arm's length About same as jet aircraft Disappeared (2) 202 21 Mar 1315 1 Unk Sandia Base, New Mexico E 75° above horizon White None 5 mts None Round Smaller than fist at arm's length App. 600-700 mph Disappeared from range of vision (2) 203 21 Mar 1300-1330 4 Unk Kirtland AFB, New SE to S 40°-50° above horizon Zig-zag motion up & down Bright silver None 1 mt None Round Size of dime at arm's length About same as fast jet aircraft Disappeared from range of vision (2) 204 22 Mar 1100 11 Unk Kirtland AFB, New Mexico NW changing to N 25,000 to 30,000' Horizontal Tan to brown None 5-6 secs None Flying wing About size of golf ball held at arm's length Extremely high speed Disappeared (2)
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.