SA John L. Ketcham to SAC Seattle re theory of radio receiver in attache case used to time jump
Document date 4 December 1971
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Id: Cooper-Part-13:250-250
Subject: Cooper Files: Cooper-Part-13:250-250 Document: Memo SA John L. Ketcham to SAC Seattle re theory of radio receiver in attache case used to time jump Id: Cooper-Part-13:250-250 Page: https://cooper.theunsolved.net/documents/Cooper-Part-13%3A250-250 What is wrong (title, date, type, which pages belong together, copies)? What does the scan show?
A person reads every report. Corrections are made by hand, to the data — titles, dates, names, which pages belong together — never to the scans, and they can take a while to appear.
FBI 164-81, Vault Part 13 p. 250 (DB Cooper-3089), Memo, dated 4 Dec 1971, serial SE 164-81-623 (as read from the transcript) — cooper.theunsolved.net/documents/Cooper-Part-13%3A250-250
OPTIONAL FORM NO. 10 MAY 1962 EDITION GSA FPMR (41 CFR) 101-11.8 UNITED STATES GOVERNMENT Memorandum
TO : SAC, SEATTLE (164-81) DATE: 12/4/71
FROM : SA JOHN L KETCHAM (P)
SUBJECT: UNKNOWN SUBJECT; NORTHWEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA - HIJACKING; EXTORTION OO: SEATTLE BUFILE 164-2111
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CC- SUB N.
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On 12/4/71 [REDACTED] called to suggest that there might be some possibility that a radio receiver was in the hijacker's attache case. This could be used in conjunction with a low frequency transmitter on the ground - to know when to drop. He said this would put one within a 3 mile radius from a 10,000 foot level jump on target.
However, he noted too, that any transisterized receiver in use should be reflected in the plane instruments - so pilot should be able to tell that such was the case (transceiver in use)
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164-81-623 SEARCHED___INDEXED_U_ SERIALIZED_9_FILED_9_ DEC 5 '71 FBI--SEATTLE
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Buy U.S. Savings Bonds Regularly on the Payroll Savings Plan
DB Cooper-3089
Serials: 164-2111, SE 164-81, SE 164-81-623
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