box Incident Summaries 173-233

This Air Materiel Command file, released by the U.S. Department of War, holds Incident Summary Sheets 173 through 233, sent under a 1949 transmittal. Most of the sheets record sightings of unidentified aerial objects in 1948 and early 1949. They cover Santa Fe, New Mexico, San Pablo, California, Honolulu, Kentwood, Louisiana, and Jackson, Mississippi. Each sheet gives the observer's details and the object's size, speed and shape, and often an investigator's note on how reliable the witness seemed. The file ends with a blank guide for investigating reports, including radar sightings.

From the source:Release of 2026-05-08 Incident: N/A, N/A. NARA Record Group 38, catalogue id 143685. Each of these incident summaries includes a "Check-List - Unidentified Flying Objects" that contains details about the incident. Many summaries also include witness lists or statements and other narrative reports or descriptions.

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Guide to Investigation

3. Local flight schedules of commercial, private and military aircraft flying in vicinity at the time:

(Check Canadian activity if close to border)

4. Possible releases of testing devices in vicinity sent aloft by Ordnance Navy, Air Force, Army, Weather Units, Research Organizations or any other:

5. If object contacted earth, obtain soil samples within and without depression or spot where object landed for purposes of making comparison of soils.

6. Obtain photographs (or original negatives) where available; if not, secure sketches of:

a. Object

b. Surrounding terrain where object was observed

c. Place where object contacted earth (if this happened)

d. Maneuvers

e. Formation (if more than two)

7. Secure signed statements.

8. Obtain fragments or physical evidence where possible.