Part 110, page 141
Document date 24 November 1971
FBI 164-81, Vault Part 110 p. 141 (DB Cooper-438), Report, dated 24 Nov 1971 — cooper.theunsolved.net/parts/Cooper-Part-110/pages/141
Transcript
The scan is the source; the transcript is machine-generated from it.
Cabin lights ON in forward cabin, OFF in aft cabin. Curtain between first class and tourist section was closed; crew could not see whether HJ was still aboard.
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2222* 8:22 PM PST
Lost communications on NW A communications frequency (131.9); 'phone-patch with SEA ARINC established. Flight now 23 DME S PDX at 10,000', 40,000# fuel aboard, 165KIAS, FF and con- figuration remained the same. Crew had previously been ad- vised to switch to ARINC on 131.8 when NWA communications lost. MSPFO and MSPFD communicated with flight and SEA ARINC thereafter on this 'phone-patch arrangement. SEADD had been monitoring all communications with flight and assis- ting in all other matters.
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[REDACTED] had also been very actively participating throughout the high-jacking. He had taken money and 'chutes to air- plane at SEA, coordinated with crew, fuel trucks, etc.
[REDACTED] later called BNL at RNO and briefed them on all of the HJ's demands, procedures to be followed at RNO, etc.
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2252 8:52 PM PST
Flight over EUG VOR, 10,000', 170KIAS, fuel aboard 33,500#, FP and configuration remained the same. Advised that they had had no communications with the HJ for "about the last 55 minutes" despite several attempts on cockpit-to-cabin inter-phone and PA system. Crew was assured that fuel was more than adequate to get to RNO; that RNO weather was good, etc. SEADD had also been actively following and participating in these events.
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2328 9:28 PM PST
Over IFR, 10,000', TAT -5°, 170KIAS, fuel aboard 27,500#, FP and configuration the same. Some airframe icing being experienced. Engine anti-icing ON for appreciable length of time, wing AI on "intermittently". Crew seemed slightly concerned about this, but were assured that it was no problem.
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2330* 9:30 PM PST
[REDACTED] asked that we sug- gest that flight crew slowly lower cabin temperature as much as practicable (to slow HJ's reflexes).
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2335* 9:35 PM PST
MSPFO suggested a slow climb to 11,000' at Captain's dis- cretion, to induce as much hypoxia in HJ as possible (flight had previously been suggested to consider climb to as high as practicable--but that they would probably be performance lim- ited to not much above 17,000'--but not above 12,500'; Latter upper limit to prevent a cabin oxygen mask drop from excit- ing HJ. 11,000' also needed for adequate terrain clearance RBL-RNO.
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