Documents / Official release

65 HS1-834228961 62-HQ-83894 Serial 164

Federal Bureau of Investigation · 137 pages · text from the file's own layer

This FBI file serial from case 62-HQ-83894 holds several copies of Air Intelligence Requirements Memorandum Number 4, "Unconventional Aircraft." Major General C. P. Cabell, Director of Intelligence at Headquarters United States Air Force, issued the memorandum on 15 February 1949. It sets continuing Air Force requirements for information on unidentified flying objects, including "Flying Discs," and tells commands to send reports to Air Materiel Command at Wright-Patterson AFB. It also includes a detailed checklist covering sighting details, observers, radar data and physical evidence, and the FBI Director appears on its distribution list.

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.

RESTRICTED
(2) Supplementary written reports, prepared on AF Form 112, will be forwarded to the
Director of Intelligence, Headquarters United States Air Force.
(3) Commanding General, Air Materiel Command is authorized direct contact with major
Air Commands (overseas) and or ganizations under their control in connection with the
development of information on thl.s subject.
c . Major Air Commands (ZI)
(1) Reports wlll be forwarded direct to the Commanding General , Al.r Materiel Command,
Wright-Patterson Al.r Force Base, Dayton, Ohio, Attn: MCIAXO-3 by installations r eceiv
ing lnformation pertaining to the requirements enunciated in Part II.
(2) Copies of such r eports may be supplied the Command Headquarters of the installation
concerned.
(3) A copy of all r eports sent to Air Materiel Command in accordance with these instruc
tions wlll be forwarded at the same ti.me to the Director of Intelligence, Headquarters
United States Air Force.
(4) Written r eports will be submitted on AF Form 112.
(5) Commanding General, Air Materiel Command is authorized direct contact with major
Air Commands (ZI) and or ganizations under thel.r control in connection wl.th the develop
ment of information on this subject.
d. Non-Air Force Agencies
(1) Addressees otQer than those of the United States Air Force are r equested to forward
r eports direct to the Commanding General, Al.r Materiel Command, Wright-Patter son Air
Force Base, Dayton, Ohio, Attn: MCIAXO-3.
(2) In order to r educe the ti.me factor involved in transmission of this type of information
it is r equested that, wher ever communications facilities permit, subordinate elements be
authorized to communicate reports dir ect to the Commanding General, Air Materiel Com
mand.
PART Il - REQUIREMENTS
General
1. Date of sighting.
2. Time of sighting (zonal by 24 hr. clock).
3. Wher e sighted (observer's position):
a. Ground
(1) City, town.
(2) Distance and direction from city or t own, road, intersection, etc.
(3) Fr om building (story), yard, etc.
(4) Map coordinates (lf feasible) showing latitude and longitude.
- 2 - RESTRICTED

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About this file

Official release, from the pursue collection. The PDF is mirrored here; the original link is above. 137 pages are in the text index: search them above, or from the library's search.