Document date 30 May 1973AIDates: 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 78 p. 253 (DB Cooper-34125), Report, dated 30 May 1973, serial 276-44-0983 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-78/pages/253
Transcript
The scan is the source; the transcript is machine-generated from it.
2
SE 164-81
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"(Airplane now at 10,000'
170K, gear down, flaps 15°,
FF 4000 #/hr/engine, TAT -7°C)".
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Log reconstructed from tape recordings of the
conversations between Flight 305 and Ground Control.
8:11 p.m.
"O.K. fine uh, at the present
time [ ]
uh, uh! (co-pilot, who [guess: was]
speaking, turned to look at
the cabin rate of climb meter
because of an increase in
cabin pressure and in doing
so his ear plug was pulled
from his ear). . . at the
present time we're getting
some uh, the uh, cabin uh rate
uh. . . uh, scuse me, my ear
plug came out and I uh, at the
present time we're getting some
oscillations in the cabin rate
of climb indicator and uh,
apparently he (unsub) must be
uh attempting to do something
with the uh, the airstairs
back there."
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(There is a time correlation
check on this tape and through
careful play back and sequencing
the time of oscillations caused
by the airstairs closing after
unsub departed was calculated
at 8:11 p.m.).