Memo · /airtel SAC Seattle re Boeing 727 technical data on aft stairs · 8 December 1971 · 1 pageAIType, title and date: machine-written — generated by an AI model from the transcripts, and it can be wrong. The scan is the source; the transcript is machine-generated from it.
Document date 8 December 1971AIDates: machine-written — generated by an AI model from the transcripts, and it can be wrong. The scan is the source; the transcript is machine-generated from it.
FBI 164-81, Vault Part 64 p. 7 (DB Cooper-26693), Memo, dated 8 Dec 1971, serial SE 164-81-1050 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-64/pages/7
The scan is the source; the transcript is machine-generated from it.
SAC (164-81)(P) 12/8/71
SA [REDACTED] b6
b7C
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]
---
On 12/2/71, [REDACTED]
[REDACTED] Seattle, Washington, furnished the
following information:
He was [REDACTED]
[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.