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Case FileNARA NAID 28979100 · T1206 Roll 33

Project Blue Book Case File

La Mesa, CaliforniaJuly 1958

Unidentified

Summary

Project Blue Book, the U.S. Air Force's 22-year UFO investigation program, opened a case file on a sighting reported from La Mesa, California in July 1958. 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 33.

Reported location

La Mesa, California

Date of incident

July 1958

State / country

CA / US

Page count

4 scanned pages

USAF evaluation

unidentified

Microfilm

T1206, Roll 33

Original case file scans

Original case file · scanned by NARAPage 1 of 4
Transcribed text
L —— a RE —— dui HR ST — URAC, ern pe
J |
; PROJECT 10073 RECORD CARD
1. DATE 2. LOCATION 12. CONCLUSIONS
O Was Balloon
27 July S58 La Mesa, Califomnia O Probably Balloon
3. DATE-TIME GROUP 4 TYPE OF OBSERVATION O Possibly Balloon
O Wes Aircraft
ER — MX Ground-Visval 0 Ground-Radar Q Probably Aircraft
; GMT__28/005557 O Air Visual O Air-Intercept Radar O Possibly Aircraft
S. PHOTOS SOUR ; & x Was Astronomical 0 teor
O Yes O Probably Astronomical
Bo ; Civilian O Possibly Astronomical
7. LENGTH OF OBSERVATION 8. NUMBER OF OBJECTS | 9. COURSE BEE
oi si Data for Evaluation
not ziven one fell on |
10. BRIEF SUMMARY OF SIGHTING 11. COMMENTS
{ Rnd obj, size of pea, burning green Everything in description is
copper w/bright green trail. No typical of a fireball. |
sound, Obj struck earth after break- |
; ing in two pieces, rose fm earth &
gradually disintegrated.
"ATIC FORM 329 (REV 26 SEP 52)
b 1
- SS AGI E5355 G0 So A as Re AE AT BUR ENTE EAR de |
/ 4

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Source: National Archives Catalog · NAID 28979100

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