E of Los Angeles, CaliforniaDecember 1957

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 E of Los Angeles, California in December 1957. 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 31.

Reported location

E of Los Angeles, California

Date of incident

December 1957

State / country

CA / US

Page count

4 scanned pages

USAF evaluation

unknown

Microfilm

T1206, Roll 31

Original case file scans

Original case file · scanned by NARAPage 1 of 4

Transcribed text

- gail is a La : E BE hs asia cic) Lr aE Eee J SEC ZEIT std | y ag bin y
> .
PROJECT 10073 RECORD CARD Fy |
1. DATE 2. LOCATION 12. CONCLUSIONS ° a
O Was Balloon
10 December 1957 E of Los Angeles, California 8 Bregesly palleen |
3. DATE-TIME GROUP 4. TYPE OF OBSERVATION as aiud Gd ah i A |
Comal Pai oon a TE Ses Gesunde Visual O Ground-Redar a y bie RY |
omy_10/0830Z2 Lp 0 Air Visual O Air-Intercept Radar |Z Possibly Aireraft
S. PHOTOS ) O Was Astronomical Meteor |
O Yes XIX Probobly Astronomical
; XIX No Civilian O Possibly Astronomical |
i 6. NUMBER OF OBJECTS | 9. COURSE BO memes acs to
{+ ERNDUH OF MRISAVATION a vig B Insufficient Data for Eval:ation |
nknown .
l or 2 seconds one North
10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS Sad
Round object, approx 5 inches in dia- Probably._a metec :
meter, Bright blue light, Object | > ho OJ Ss 7x
appeared to be dropping at an angle 5 a | 3 £o i 3
from south to north and disappeared 3222 gai
behind mountains, Eg" i pid 4
5% gk 0
We or c I~
- a o Oo |
uw aq = El
wo 5 Yt |
Lo ao Nn -3 ~ Tl i
Hs 0 : 8 5) Qo pb joa
® : Hic lf Ee
’ ® i \ [7 NE y
/
; 7 ;
| i : :
FER Aa AC PAR THE REET RN I RU PR 2

/ 4

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Source: National Archives Catalog · NAID 28975969

Connected across the archive

Places

California E of Los Angeles, CA

Agencies

United States Air Force

Dates

1957 1957-12-01