Handwritten citizen letter offering anti-hijacking idea for $150,000

Document date August 1972

Part 27page 1711 pageDB Cooper-9173

Open in FBI Vault (Part 27, page 171 of the PDF)
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Id: Cooper-Part-27:171-171

Subject: Cooper Files: Cooper-Part-27:171-171

Document: Handwritten citizen letter offering anti-hijacking idea for $150,000
Id: Cooper-Part-27:171-171
Page: https://cooper.theunsolved.net/documents/Cooper-Part-27%3A171-171

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FBI 164-81, Vault Part 27 p. 171 (DB Cooper-9173), Letter, dated Aug 1972, serial SE 164-81-3770 (as read from the transcript) — cooper.theunsolved.net/documents/Cooper-Part-27%3A171-171

7-7-7 b6 b7C

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Dear Sir:

I have thought of a idea that may work in the prevention of aircraft hijacking. It came to me while reading and noting that our government and aircraft builders have not come up with a real solution to the problem. The cost at this time to find a way to stop hijacking is tremendous. Plus the possible loss of life + aircraft. This are my conditions to expose my idea. $150,000 tax free if it is tested and works. I was in the Air Force for eight years. Also I worked for Boeing Aircraft for two years as a Quality Control inspector of aircraft. Knowing the air craft [guess: systems] makes me believe that it will work

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[REDACTED - b6/b7C] Spokane Wash 99208 [REDACTED - b6/b7C] 164-81-3770

[stamp] SERIALIZED... FILED... AUG 9 - 1972 DB Cooper-9173

Serials: SE 164-81-3770

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Very similar text — possibly a copy redacted differently, or another memo written from the same template.