MemoTo SAC Seattle re information on Boeing 727 operations from Seattle source8 December 19711 page
memoLegibility: high

Part 71, page 363

DB Cooper-30657Serials SE 164-81

Document date 8 December 1971

Open in FBI Vault (Part 71, page 363 of the PDF)

FBI 164-81, Vault Part 71 p. 363 (DB Cooper-30657), Memo, dated 8 Dec 1971 — cooper.theunsolved.net/parts/Cooper-Part-71/pages/363

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 (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