Part 71, page 353

DB Cooper-30638

Document date 7 May 1964

Open in FBI Vault (Part 71, page 353 of the PDF)

FBI 164-81, Vault Part 71 p. 353 (DB Cooper-30638), Report, dated 7 May 1964, serial FC 751-1-1 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-71/pages/353

Transcript

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

COND NO. | IRIG TIME | CABIN hI FT .02 | 12:12::36 | 10620 | 250 | 10500 | :38 | 10640 | 300 | 10520 | 127.5 || | | | | | .05 | 12:13::32 | 10850 | -300 | 10670 | 127.0 || | :34 | 10850 | -300 | 10670 | 127.0 || | :36 | 10840 | -300 | 10670 | 127.0 || | :38 | 10830 | -300 | 10660 | 127.5 || | :40 | 10810 | -300 | 10650 | 127.5 || | :42 | 10810 | -300 | 10630 | 127.5 || | :44 | 10790 | -300 | 10620 | 127.5 || | :46 | 10780 | -300 | 10600 | 128.0 || | :48 | 10770 | -350 | 10590 | 128.5 || | :50 | 10750 | -400 | 10560 | 129.0 || | :52 | 10730 | -400 | 10550 | 129.5 || | :54 | 10720 | -400 | 10530 | 130.5 || | :56 | 10700 | -400 | 10510 | 130.5 || | :58 | 10690 | -400 | 10500 | 130.5 || 12:14::00 | 10670 | -400 | 10490 | 130.5 || | :02 | 10670 | -300 | 10480 | 130.5 || | :04 | 10660 | -300 | 10480 | 130.5 || | :06 | 10660 | -250 | 10470 | 130.5 || | :08 | 10650 | -200 | 10460 | | :10 | 10650 | -200 | 10460 | 130.5 || | :12 | 10650 | -150 | 10460 | 130.5 || | :14 | 10640 | -150 | 10460 | 129.5 || | :16 | 10640 | -150 | 10450 | 129.5 || | CABIN R/C FPM | PILOTS hI FT | PILOTS VI KNOTS || COND NO | IRIG TIME | CABIN hI FT | CABIN R/C FPM | PILOTS hI FT | PILOTS VI KNOTS | 128.0 || .05 | 12:14::18 | 10640 | -150 | 10450 | 128.5 | :20 | 10630 | -150 | 10450 | 128.0 || | :22 | 10620 | -150 | 10440 | 128.0 | :24 | 10610 | -200 | 10430 | 128.0 | :26 | 10590 | -250 | 10410 | 128.0 | :28 | 10570 | -300 | 10390 | 128.0 | :30 | 10530 | -500 | 10370 | 128.5 | :32 | 10530 | -500 | 10350 | 128.5 | :34 | 10510 | -500 | 10330 | 129.5 | :36 | 10490 | -500 | 10310 | 129.5 | :38 | 10480 | -500 | 10280 | 130.5 | :40 | 10460 | -500 | .10260 | 130.5 | :42 | 10430 | -500 | 10240 | 130.5 | :44 | 10430 | -500 | 10220 | 131.0 | :46 | 10410 | -500 | 10190 | 131.5 | :48 | 10390 | -500 | 10160 | 132.0 | :50 | 10360 | -500 | 10150 | 132.5 | :52 | 10340 | -500 | 10130 | 132.5 | :54 | 10330 | -500 | 10120 | 132.5 | :56 | 10280 | -600 | 10110 | 132.0 | :58 | 10210 | -1000 | 10110 | 131.0 130.5 || 12:15::00 | 10170 | -1000 | 10110 | 130.5 | :02 | 10150 | -900 | 10110 | 131.0 | :04 | 10130 | -800 | 10110 | 132.0 | :06 | 10130 | -500 | 10110 | 133.0 | :08 | 10120 | -300 | 10110 | 134.5

---

CALC J CHECK MB APR ge APR 3-31-64 REVISED 3-31-64 3-31-64 DATE TD 1040 B-R7

---

DB Cooper-30638 AFT AIRSTAIR EXTENDED IN FLIGHT TEST LCO-1 THE BOEING COMPANY SEC. 1.21.19 PAGE 20 127-22 N72700 6-7000 D6-7771

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.

Two-panel data table recording time-series flight test measurements during aft airstair extended in-flight test for DB Cooper case investigation. Data includes cabin altitude (feet), cabin rate of climb/descent (FPM), pilots altitude (feet), and pilots velocity (knots) at 2-second intervals from approximately 12:12:36 through 12:15:08. Condition numbers .02 and .05 are recorded. Cabin altitude generally decreases from ~10850 ft to ~10120 ft with increasing descent rates, while pilot velocity increases from ~127 to ~134.5 knots. Title block with calculation/check/approval initials and dates, all dated 3-31-64. Form number TD 1040 B-R7. Document identification block indicating this is page 20 of Boeing test report D6-7771 for the aft airstair extended in-flight test (LCO-1) related to DB Cooper case 30638, aircraft N72700.

Clean typewritten table with clear column headers
Some minor artifacts from scanning but fully legible

Part 71, page 353

People

Dates mentioned

Transcript