SA Thomas J. Manning to SAC Seattle re verified alibis and beacon receiver lead
Document date 3 December 1971
Also filed at: Part 13 pp. 86–87 · Part 74 pp. 185–186
Copies may differ in what was redacted.
Also filed separately as sections:
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Id: Cooper-Part-65:052-053
Subject: Cooper Files: Cooper-Part-65:052-053 Document: Memo SA Thomas J. Manning to SAC Seattle re verified alibis and beacon receiver lead Id: Cooper-Part-65:052-053 Page: https://cooper.theunsolved.net/documents/Cooper-Part-65%3A052-053 What is wrong (title, date, type, which pages belong together, copies)? What does the scan show?
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FBI 164-81, Vault Part 65 pp. 52–53 (DB Cooper-27271–27272), Memo, dated 3 Dec 1971 — cooper.theunsolved.net/documents/Cooper-Part-65%3A052-053
SAC, SEATTLE (164-81) 12/3/71
SA THOMAS J. MANNING
UNSUB, aka Dan Cooper; NW AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA - HIJACKING; EXTORTION OO: SE
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Investigation in Clark and Cowlitz Counties on 12/3/71, consisted of the following:
[REDACTED] mentioned in his interview at [REDACTED], Illinois, were contacted and alibi furnished [REDACTED] was verified.
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Investigation vicinity [REDACTED] reflected one woman, [REDACTED], recalls a light plane landing with its landing lights on between 8:00 and 8:30 PM, on 11/24/71, remaining on the ground for approximately one half hour. However, she pointed out that she finds nothing suspicious in this since a number of planes land at both the Hauhn and McClellan small air strips frequently, both day and night, and it is possible she may be confused on the exact time of the landing of the light plane which she has referred to as being 11/24/71.
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Information developed by SA [REDACTED] at Vancouver, Washington, reflects [REDACTED], possible suspect in hijacking and memo to file will be furnished by SA [REDACTED] on 12/6/71, with details.
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Contact made with U.S. Weather Bureau, Portland, Oregon, to determine exact weather from 7,000 feet to ground level on 11/24/71, reflects generally conditions previously furnished to case agent, except that some of these winds both at 7,000 feet and on the surface could have been coming from 225 to 235 degrees, a general southeast wind. Further information concerning the wind and weather conditions being furnished in insert form concerning search in general.
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TJM:klb (3)
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[handwritten] [guess: 1/a] 4-8/-[guess: 652] [stamp] [guess: SER.] [guess: MB] [guess: MY] DEC DB Cooper-27271
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[guess: writer] [guess: h0] [guess: with]
SE 164-81
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Information developed by SA [REDACTED] reflects that a market beacon receiver which could have allowed the skyjacker to zero in on a particular ground point from which a signal was eminating, is of cigarette package size. An advertisement of one particular type of marker beacon receiver is being submitted for information to the file.
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b6 b7c
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DB Cooper-27272
Serials: SE 164-81