News Article
Unclassified Complete
733667-001-003-0012
National Archives and Records Administration
Confidence
85%
Credibility
80%
View original document ↗ hosted at the official government source
Intelligence summary
A Japan Air Lines pilot reported seeing a UFO over Alaska, which was later attributed to the bright planet Jupiter and possibly Mars by UFO expert Philip Klass. The pilot, Capt. Kenju Terauchi, disputed this explanation, claiming the object moved with him during his flight.
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Linked cases
Locations referenced
| Location | Context | Confidence | Supporting text |
|---|---|---|---|
| Alaska enroute | Investigation Location | Unresolved | …conversations between the pilot and ground controllers in which the pilot reported losing sight of the object after completing his turn. The object reappeared |
| Alaska | Sighting Location | Unresolved | A Japan Air Lines pilot reported seeing a UFO over Alaska, which was later attributed to the bright planet Jupiter and possibly Mars by UFO expert Philip Klass. |
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Jun 16, 2026
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Ingestion Date for 733667-001-003-0012
Jun 16, 2026
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Document Record Date for 733667-001-003-0012
Jun 16, 2026
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Full document text
3,611 characters, transcribed via OCR. Errors reflect the source scan. Compare with the original ↗
UFO expert says it was Jupiter -
Editor Philip Klass believes planets were in the sight line of JAL pilot
Daily News staff and wire services
NEW YORK — A Japan Air Lines
pilot who claimed to have seen an uni-
dentified flying object alongside his air-
plane in the skies above Alaska last
November was actually seeing an unusu-
ally bright image of the planet Jupiter
and possibly Mars, an investigator said
Tuesday. :
Philip J. Klass said astronomical cal-
culations show that on Nov. 17, when the
pilot, Capt. Kenju Terauchi, claimed to
have seen the UFO, Jupiter was extreme-
ly bright and was visible precisely where
the pilot reported that he saw the UFO.
Mars was just below and to the right
of Jupiter, and may explain the pilot's
initial report that he saw two lights,
Klass said.
Terauchi Wednesday rejected Klass’s
explanation.
“It was not a weather phenomena,”’
Terauchi said. “Not a star. It moved with
you.”
Terauchi said he did see J upiter during
his flight, but he said the planet was not
the UFO.
Klass, an editor with the magazine
Aviation Week and Space Technology
and a long-time investigator of claimed
UFO sightings, said the pilot’s claims
that the object followed him as he made
Anchorage Daily News
& 360-degree turn are contradicted by
what he told flight controllers at the
time.
John Leyden, a spokesman for the
Federal Aviation Administration in
Washington, quoted from a summary of
conversations between the pilot and
ground controllers in which the pilot
reported losing sight of the object after
completing his turn.
The object reappeared a few moments
later, according to the. FAA summary
quoted by Leyden.
' Terauchi was over Alaska enroute
from Europe, via Iceland, to Tokyo when
he reported sighting the object.
Paul Steucke, a spokesman for the
FAA in Anchorage, said that Terauchi ~
told FAA officials in an interview that -
the object stayed with him as he turned.
Terauchi, in a Wednesday interview, said
he did lose sight of the object during part
of the turn.
Steucke said the FAA would be releas-
ing the results of its own investigation in
mid-February.
According to Klass, who reviewed a
complete copy of the transcript, the pilot
never reported seeing Jupiter or Mars,
even though they were clearly visible.
Klass’s report was issued by the Com:
mittee for the Scientific Investigation of
a
= _s : dL.
a
Friday, January 30, 1987 B5
SBahs
ik
Claims of the Paranormal in Buffalo, v
N.Y., an organization of scientists who, .
investigate claims of UFO Sightings, ESP -
occurrences and other so-called paranor-
mal phenomena. has
Klass, who heads the organization's .
UFO subcommittee, is the author of “
“UFOs: The Public Deceived.” He has~
been investigating UFO sightings for:
more than 20 years. ae
‘Jupiter was only 10 degrees above-:
the horizon, making it appear to the pilot +
to be roughly at his .own 35,000-foot
altitude,’ said Klass in his report. Mars “
was visible closer to the horizon and to’
the right of Jupiter, but was not as:
bright, the report said. i650
“This is not the first time that an,
experienced pilot has mistaken a bright °
celestial body for a UFO, nor will it be :
the last,” Klass said.
A United Airlines flight and an Air;
Force C-130 cargo plane that were in:
Terauchi’s vicinity at the time of the-
claimed Sighting were asked to look for.
the object, and neither reported seeing it. -
“I think that the Japanese pilot should
have been a little more skeptical when:
the United airliner and the Air Force
plane reported seeing nothing,” Klass:
said Tuesday in a telephone interview>
from Colorado, .
TT