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Case FileNARA NAID 28965495 · T1206 Roll 25

Project Blue Book Case File

Pueblo, ColoradoMay 1956

Insufficient Data

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from Pueblo, Colorado in May 1956. The full case file (5 scanned pages of witness statements, Air Force memoranda, and investigator notes) is reproduced below as held by the National Archives. The Air Force assigned this case to its broader investigation of unidentified aerial phenomena alongside ~12,600 other reports filed between 1947 and 1969. Citation: NARA Record Group 341, Microfilm Publication T1206, Roll 25.

Reported location

Pueblo, Colorado

Date of incident

May 1956

State / country

CO / US

Page count

5 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 25

Original case file scans

Original case file · scanned by NARAPage 1 of 5
Transcribed text
lt dE PROJECT 10073 RECORD CARD :
1. DATE | LOCATION 12. CONCLUSIONS
J : 0 Was Balloon
1-2-3 May 56 Pueblo, Colorado ao Probably Balloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION 0 Possibly Balloon
] Locol SEE To —— AXGround- Visual 0 Ground-Radar 5 Bebop Alveiats
omT0426 , 0445 , 0455 Z 0 Air Visual 0 Air-Intercept Radar 0 Possibly Aircraft
5. PHOTOS » SOURCE DO Was Astronomical
i DO Yes O Probably Astronomical
Bio Civilians O Possibly Astronomical
7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE 3 other Ross lights
: : nsufficient Dara for Evaluation
straight 8 “Unknown
| 4 sec to 1 minute 1 and 2 circling/rolling/unknown
| 10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
Oke -two round objects, size of IR 112 not received, Initial
baseball to grapefruit. Color white report indicated that objects
- fluorescent objezxts moving very fast. | possibly the same and that a
1 IR 112 to follow. searchlight generated the report
FE Canngt conclide on the limited
data and case carried as
3 insufficient data,
y | | ATIC FORM 329 (REV 26 SEP 52)
| ; ; y »
El) s ; : )
/ 5

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Source: National Archives Catalog · NAID 28965495

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