ASAC Bibler to SAC Seattle re Philadelphia theory that hijacker hid in inspection panel
Document date 3 December 1971
Also filed at: Part 65 p. 65
Copies may differ in what was redacted.
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Id: Cooper-Part-13:135-136
Subject: Cooper Files: Cooper-Part-13:135-136 Document: Memo ASAC Bibler to SAC Seattle re Philadelphia theory that hijacker hid in inspection panel Id: Cooper-Part-13:135-136 Page: https://cooper.theunsolved.net/documents/Cooper-Part-13%3A135-136 What is wrong (title, date, type, which pages belong together, copies)? What does the scan show?
A person reads every report. Corrections are made by hand, to the data — titles, dates, names, which pages belong together — never to the scans, and they can take a while to appear.
FBI 164-81, Vault Part 13 pp. 135–136 (DB Cooper-2942–2943), Memo, dated 3 Dec 1971, serial SE 164-81-576 (as read from the transcript) — cooper.theunsolved.net/documents/Cooper-Part-13%3A135-136
OPTIONAL FORM NO. 10 MAY 1962 EDITION GSA FPMR (41 CFR) 101-11.6 UNITED STATES GOVERNMENT
Memorandum
TO : SAC, SEATTLE (164-81) DATE: 12/3/71
FROM : ASAC PAUL R. BIBLER [signature: Paul E. [guess: Bibler]]
SUBJECT: UNSUB, aka Dan Cooper; NORTHWEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA - HIJACKING; EXTORTION OO: SE
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SA [REDACTED] called from Philadelphia 12/2/71. He is the Agent who has been interviewing [REDACTED] has a theory based on the fact that [REDACTED] told him subject appeared to be quite intelligent and did not appear to be dressed for jumping. Theory is that subject did not leave the plane until after it landed in Reno. [REDACTED] got someone to take him through a 727 and there are two inspection panels in the extreme rear of the plane, which are not readily detectable. In fact, [REDACTED] did not even know about these areas. The one on the right of the stairway door in the rear of the plane, is untenable for very long because it is full of heat ducts and other materials.
The one on the left has room for a man to stand along with the gear which subject had with him the other night. He would not freeze at below level, nor would he need oxygen at that level.
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[REDACTED] is putting this in a teletype, however, I telephoned ASAC DULINSKY in Las Vegas and asked him to determine if FBI personnel or airline personnel in their processing, inspected this compartment in Reno on 11/24/71. I also called Minneapolis where I talked to the duty agent [REDACTED] and asked him to have Minneapolis determine if airline personnel had been in this compartment in instant plane since it had been returned to duty and whether it showed any signs of occupancy. I told him that if they could not see if that panel had been opened, to determine where the plane is now so that it can be inspected.
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164-81 - 576 SEARCHED INDEXED SERIALIZED /[illegible] FILED [illegible] DEC 6 1971 FBI—SEATTLE
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PRB:klb (3)
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Buy U.S. Savings Bonds Regularly on the Payroll Savings Plan
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DB Cooper-2942
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b6 b7C
SAC, SEATTLE (164-81) 12/3/71
ASAC PAUL R. BIBLER
UNSUB, aka Dan Cooper; NORTHWEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA - HIJACKING; EXTORTION OO: SE
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SA [REDACTED] called from Philadelphia 12/2/71. He is the Agent who has been interviewing [REDACTED] [REDACTED] has a theory based on the fact that [REDACTED] told him subject appeared to be quite intelligent and did not appear to be dressed for jumping. Theory is that subject did not leave the plane until after it landed in Reno. [REDACTED] got someone to take him through a 727 and there are two inspection panels in the extreme rear of the plane, which are not readily detectable. In fact, [REDACTED] did not even know about these areas. The one on the right of the stairway door in the rear of the plane, is untenable for very long because it is full of heat ducts and other materials.
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The one on the left has room for a man to stand along with the gear which subject had with him the other night. He would not freeze at below level, nor would he need oxygen at that level.
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[REDACTED] is putting this in a teletype, however, I telephoned ASAC DULINSKY in Las Vegas and asked him to determine if FBI personnel or airline personnel in their processing, inspected this compartment in Reno on 11/24/71. I also called Minneapolis where I talked to the duty agent [REDACTED] and asked him to have Minneapolis determine if airline personnel had been in this compartment in instant plane since it had been returned to duty and whether it showed any signs of occupancy. I told him that if they could not see if that panel had been opened, to determine where the plane is now so that it can be inspected.
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SEARCHED _____ INDEXED _____ SERIALIZED [REDACTED] FILED [REDACTED] DFG FBI—SEATTLE
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PRB:klb (3)
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DB Cooper-2943
Serials: SE 164-81, SE 164-81-576