Part 71, page 341

DB Cooper-30626

Document date 7 May 1964

Open in FBI Vault (Part 71, page 341 of the PDF)

FBI 164-81, Vault Part 71 p. 341 (DB Cooper-30626), Report, dated 7 May 1964, serial FC 751-1-1 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-71/pages/341

Transcript

The scan is the source; the transcript is machine-generated from it.

FA5801[guess: 3]

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DB Cooper-30626

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TD 1544 L-R3 AIRSTAIR EXTENDED WITH HYDRAULIC POWER Cond. 1.21.19.05 TEST 100-1

BOEING | NO. D6-7771 Sec. 1.21.19 | PAGE 8

AI notes

Commentary by the AI model that transcribed this page. It may bring in context the page itself does not state. The scan is the source; the transcript is machine-generated from it.

Technical photograph or drawing showing a Boeing 727 aft airstair in the extended position, deployed via hydraulic power. The image shows the structural framework and mechanical components of the airstair from an angle, with the identifier 'FA58013' visible in the lower-left corner of the image frame. FBI case/document reference number for the D.B. Cooper file. Boeing technical document title block identifying this as page 8 of document D6-7771, section 1.21.19, showing the airstair extended with hydraulic power under test condition 100-1.

Scanned technical drawing/photograph with moderate clarity
Some text and details are difficult to read due to scan quality
Three-hole punch marks visible along left edge