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Case FileNARA NAID 28965788 · T1206 Roll 25

Project Blue Book Case File

Sibley, IowaJune 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 Sibley, Iowa in June 1956. The full case file (4 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

Sibley, Iowa

Date of incident

June 1956

State / country

IA / US

Page count

4 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 25

Original case file scans

Original case file · scanned by NARAPage 1 of 4
Transcribed text
bm | Bese £0 2 GE RET  ——————————— ep re a
|
|
|
i PROJECT 10073 RECORD CARD Ha
1. DATE 2. LOCATION 12. CONCLUSIONS
2 ; QO Was Balloon
1 June 1956 Siblzy, lowa O Probably Balloon
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION 0)’ Poysiply Baliooh
(B75 rine SA DT COE Sy SOR SRE Ground: Visual 0 Ground-Redar Lig Eat SOP
/0) a is 1
dae i 00/20288 0 Air-Vi suc! 0 Air-Intercept Radar 0 Possibly Aircraft
C Yes O Probably Astronomical
+@ No Civilian O Possibly Astronomical
7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE O,Other———
a insuth cont Data for Evaluation
three minutes one | north G" Unsnown
Gen at URS REE Set SIRE ERE SE PE
io. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
| One cylindrical object, size oi 2 Evaluation as a/c based on dura-
| nasketball held at arms length, tion and flight. Nothing indi-
| light brown in color, appeared to cating object other than a/c.
be moving north at a slow rats of
speed,
!
ATIC FORM 329 (REV 26 SEP 52) :
aR SR SRR a fa ss Le Bin de SEGRE Set ps ne
/ 4

Use ← → keys to navigate · scans hosted by the U.S. National Archives

Source: National Archives Catalog · NAID 28965788

Connected across the archive

Programs and code names

Project Blue Book

Places

IowaSibleySibley, IA

Agencies

United States Air Force

Dates

19561956-06-01

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