(Project Blue Book, U.S. Air Force, Washington, D.C.)
Source: Fold3.com, Lindon, Utah
Quote from the document (Page 1):
“AF Pilot first observed a dark object, then the
object lit into a ‘bright blue colored flame’. The object appeard [sic] approx 5,000 feet above and 20
deg to the right of a/c. Object crossed in front of nose of a/c and maintained
a paralell [sic] position of about 3 deg to right of nose of the obserber’s a/c
at 1,000 to 2,000 ft
above. Observer paced his a/c in a climb to attempt identification and the
light went out. Total observation of flame was about 20 seconds. No radar
contact was made with the object althought [sic] the radar set was working
properly. No a/c were reported in area.”
The case is listed as “UNIDENTIFIED.”
(ufocasebook.com image)
Satellite photo of Fukuoka, Japan (tageo.com)
(tageo.com photo)