Part 60, page 301
DB Cooper-24986Serials SE 164-81
Document date 30 May 1973
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FBI 164-81, Vault Part 60 p. 301 (DB Cooper-24986), Report, dated 30 May 1973 — cooper.theunsolved.net/parts/Cooper-Part-60/pages/301
Transcript
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SE 164-81
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Stewardess [REDACTED] then acted as a communica- tions media between the Unsub.and the captain of the air- craft until about five minutes after the aircraft departed the Seattle-Tacoma International Airport when she was instruct- ed to go to the cockpit by the Unsub.
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The hijacker's instructions after receiving the money were vague. He probably wanted to jump from the aircraft as soon as possible after the takeoff. The hi- jacker put two of the parachutes, a back pack and a front pack, on prior to take off. He also wanted the air stairs lowered prior to takeoff, which subsequently proved to be impossible. Finally the hijacker jumped as soon as practi- cal after the stairs were lowered in flight. The hijacker was delayed from jumping by the trouble he experienced in lowering the air stairs and by the fact he was not provided a knapsack but rather a small white canvas bag which he had to affix to her person utilizing parachute shroud lines from an unused parachute.
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The plane departed Sea-Tac at 7:36 PM. Some four or five minutes after take-off, [REDACTED] was sent to the cockpit by the hijacker. Some ten minutes after she entered the cockpit, one of the officers received a call on the interphone from the hijacker, advising he could not get the air stairs down. The pilot then leveled off the aircraft and reduced the air speed. Within a very short time, the officer's panel showed that the stairs had been lowered and approximately five minutes later, (8:05 PM), the officer contacted the hijacker who said everything was okay. That was the last communication with the hijacker.
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At 8:11 PM, while the plane was at 10,000 feet, the crew experienced a pressure bump or oscillation and the Cabin Pressure Rate of Change Gauge also reacted violently and it was thought, at that time, that the hijacker might have left the aircraft.
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When the aircraft landed at Reno, Nevada, a chest pack chute and a back type chute were found on the plane. The missing chest pack chute, sometimes referred to as an emergency chute, is a training pack "dummied up" to look like a good one. The missing back pack chute is non-steerable and anyone utilizing this type chute would have no chance of slowing down or picking his spot on which to land.
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DB Cooper-24986