SAC Seattle re suspect Major Warren Elfendahl, Sub 480
Document date 11 June 1973
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Id: Cooper-Part-112:533-534
Subject: Cooper Files: Cooper-Part-112:533-534 Document: Memo SAC Seattle re suspect Major Warren Elfendahl, Sub 480 Id: Cooper-Part-112:533-534 Page: https://cooper.theunsolved.net/documents/Cooper-Part-112%3A533-534 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 112 pp. 533–534 (DB Cooper-51421), Memo, dated 11 Jun 1973, serial SE 164-81-4787 (as read from the transcript) — cooper.theunsolved.net/documents/Cooper-Part-112%3A533-534
SAC, SEATTLE (164-81)(P) 6/11/73
SA [REDACTED]
NORJAK Sub 480 00: SEATTLE
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RE: MAJOR WARREN ELFENDAHL Sub No: 480
ELFENDAHL is being considered a suspect in this matter because he participated in a test of the air stairs on the 727 conducted by Boeing in 1963/1964. In addition, ELFENDAHL possesses a commercial pilot's license with both single and multi-engine airplanes.
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The following descriptive information concern- ing ELFENDAHL was obtained through review of Boeing per- sonnel files:
Name MAJOR WARREN ELFENDAHL Sex Male Race Caucasian Date of birth August 5, 1920 Place of birth Seattle, Washington Height 6' Weight 170 lbs. Hair Light brown Eyes Hazel Military service An officer in the United States Air Force from 11/9/42 - 10/23/45 Education Graduated from the Univer- sity of Washington with a B.S. in Physics, 3/18/49 Complexion Swarthy SSAN 533 18 1516 Wife [REDACTED]
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Through logical investigation, it was determined that MAJOR ELFENDAHL was currently employed with the Boeing
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SEARCHED..........INDEXED.......... SERIALIZED...AS...FILED...AA...... JUN 1 1 1973 FBI -- SEATTLE
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Sub 480 b6 b7C [guess: 164-81-4787]
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(3) Seattle RNN:kn (3)
SE 164-81 (480)
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Aircraft Corporation in building 1080, Boeing/Renton plant.
On September 19, 1972, [REDACTED] [REDACTED] Boeing/Renton plant, advised that suspect ELFENDAHL was currently living at 8820 S. E. 61st, Mercer Island, Washington, phone AD 2-2373. [REDACTED] advised that ELFENDAHL had recently suffered a heart attack and was on sick leave and would remain so for approximately six weeks.
In view of the fact that ELFENDAHL's health is failing, and no contact was made with him concerning this matter, in order to allow him to sufficiently recuperate.
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LEAD
SEATTLE At Renton, Washington (Boeing/Renton Plant)
Will contact suspect ELFENDAHL and obtain des- criptive information from him and further process him as a possible subject in this matter to determine if he is ident. with UNSUB.
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ARMED AND DANGEROUS
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b6 b7C
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DB COOPER-51421
Serials: SE 164-81, SE 164-81-4787