To SAC Seattle re information on Boeing 727 operations from Seattle source
Document date 8 December 1971
Part of: SA to SAC Seattle re Boeing 727 technical data and aft airstair operation
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Id: Cooper-Part-71:363-363
Subject: Cooper Files: Cooper-Part-71:363-363 Document: Memo to SAC Seattle re information on Boeing 727 operations from Seattle source Id: Cooper-Part-71:363-363 Page: https://cooper.theunsolved.net/documents/Cooper-Part-71%3A363-363 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 71 p. 363 (DB Cooper-30657), Memo, dated 8 Dec 1971 — cooper.theunsolved.net/documents/Cooper-Part-71%3A363-363
OPTIONAL FORM NO. 10 MAY 1962 EDITION GSA FPMR (41 CFR) 101-11.6 UNITED STATES GOVERNMENT Memorandum
TO : SAC (164-81)(P) DATE: 12/8/71
FROM : SA [REDACTED] Sub - P. - C. - C[illegible] SUBJECT: UNSUB, aka Dan Cooper; NORTHWEST AIRLINES FLIGHT 305 PORTLAND TO SEATTLE, 11/24/71 RE: Boeing Technical CAA-HIJACKING; Data EXTORTION OO: SE RE: [REDACTED]
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On 12/2/71, [REDACTED], Seattle, Washington, furnished the following information:
He was [REDACTED] testing of this aircraft.
It is physically impossible to make a take-off in the 727 with the rear stairs extended. He explained that if this were attempted the stairs would strike the runway at the point of rotation just prior to liftoff.
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Sub. P [illegible initials] 1050 SEARCHED ......... IN[illegible] SERIALIZED [illegible] FILED DEC 0 3 1971 FBI-SE..ITLE
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JCN/djs (3) [illegible]
Buy U.S. Savings Bonds Regularly on the Payroll Savings Plan
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DB Cooper-30657
Serials: SE 164-81