Part 30, page 158
DB Cooper-10802Serials 164-2111, SE 164-81, SE 164-81-4V77
Document date 2 March 1973
FBI 164-81, Vault Part 30 p. 158 (DB Cooper-10802), Airtel, dated 2 Mar 1973, serial SE 164-81-4V77 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-30/pages/158
Transcript
The scan is the source; the transcript is machine-generated from it.
3/2/73
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[guess: Sub] O
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AIRTEL AIRMAIL
TO: ACTING DIRECTOR, FBI (164-2111)
FROM: SAC, SEATTLE (164-81)(P)
SUBJECT: NORJAK OO: SEATTLE
MONTHLY SUMMARY
Re: Seattle airtel to the Bureau, 2/7/73.
SEARCH AREA AND COURSE
In attempt to determine the accuracy of the first search area, the following was learned:
The first search area was calculated using a system of plotting known as "GEOREF" (i.e. Geographical Reference) which has a plotting error of plus or minus one mile. A new plotting system using a computer generated latitude and longi- tude has a plotting error of plus or minus 1/2 mile. Using the new system, [REDACTED] Northwest Orient Airlines [REDACTED] plotted a new course for the Norjak airplane and a new search area based on the new course. The new search area is partially outside the first area.
It is felt that if Unsub's parachute opened, he is no longer in the southwest Washington area, but if his parachute did not open, he would be in a corridor along the flight path. The time of jump is known, and an area approximately one mile by seven miles represents the area Unsub. would have landed in if his parachute did not open.
Seattle Division is currently making arrangements to search that portion of the above described area not previously searched.
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ARTIST SKETCH
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2 - Bureau 3 - Seattle RMN/slb (5)
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b6 b7C
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DB Cooper-10802 164-81- 4V77