Part 70, page 322
DB Cooper-30174Serials 164-2111, SE 164-81, SE 164-81-623
Document date 4 December 1971
FBI 164-81, Vault Part 70 p. 322 (DB Cooper-30174), Memo, dated 4 Dec 1971, serial SE 164-81-623 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-70/pages/322
Transcript
The scan is the source; the transcript is machine-generated from it.
OPTIONAL FORM NO. 10 MAY 1962 EDITION GSA FPMR (41 CFR) 101-11.6 UNITED STATES GOVERNMENT
Memorandum
TO : SAC, SEATTLE (164-81) DATE: 12/4/71
FROM : SA JOHN L KETCHAM (P)
CC- SUB N. 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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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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j1k (1)
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164-81-623 SEARCHED _____ INDEXED _____ SERIALIZED _9_ FILED _9_ DEC 6 FBI — SEATTLE
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sub N
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b6 b7C
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DB Cooper-30174