Document date 28 November 1971AIDates: machine-written — generated by an AI model from the transcripts, and it can be wrong. The scan is the source; the transcript is machine-generated from it.
FBI 164-81, Vault Part 11 p. 5 (DB Cooper-1898), Memo, dated 28 Nov 1971, serial SE 164-81-151 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-11/pages/5
[redacted name] Northwest Flight Dispatch Center,
called twice on the afternoon of November 20, 1971. The
first time he advised that he had checked on possible
information and believed that a more accurate pin-pointing
of the possible place of descent of the hijacker would be
three statute miles east northeast of LaCenter, Washington,
on a bearing of 080 degrees, true. He said the center of
the circle would depend on the clock being a few seconds
off one way or the other or the Unsub falling free before
he opened the chute. However, he would estimate that a
circle with a three-mile radius from the point described
above should come close to the place of descent.
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He called back subsequently and said that he had
talked to the man who was working the radar at Portland
which was very accurate since it was very close to the
plane at the time and determined that the plane was actually
one to two miles east of the center of this particular
fly-way. He said for this reason, we might consider
moving the center of the circle described above one or
two miles due east.
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This information was furnished to SA MANNING on
November 28, 1971. He was instructed to make certain that
this area was thoroughly searched and to consider air
coverage on November 29, 1971.