Interview of NWA official re flight records, with landing-zone analysis and Figure 1 Portland chart
Interviewed 4 December 1971Dictated 9 December 1971
Also filed separately as sections:
- Interview of NWA official re hijacker's probable bail-out and landing point
- Interview re hijacker's bail-out and probable landing area
- Interview of Northwest Airlines employee re Flight 305 technical records and bailout point
- Interview of NWA employee re computed bail-out point of Flight 305
- Interview of NWA employee re Flight 305 technical records
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Id: Cooper-Part-64:298-300
Subject: Cooper Files: Cooper-Part-64:298-300 Document: FD-302 interview of NWA official re flight records, with landing-zone analysis and Figure 1 Portland chart Id: Cooper-Part-64:298-300 Page: https://cooper.theunsolved.net/documents/Cooper-Part-64%3A298-300 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 64 pp. 298–300 (DB Cooper-27164–27166), FD-302 interview, interviewed 4 Dec 1971, serial SE 164-81-1348 (as read from the transcript) — cooper.theunsolved.net/documents/Cooper-Part-64%3A298-300
FEDERAL BUREAU OF INVESTIGATION
Date December 15, 1971
[REDACTED], Northwest Airlines, Inc., advised that after reviewing his notes and technical records concerning the operation of Northwest Airlines Flight 305 on November 24, 1971, he had drawn the following conclusions concerning the possible vicinity where the hijacker bailed out of the air- craft and the possible area in which he landed. [REDACTED] furnished a map with an overlay of the hijacker's landing area.
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[guess: Sub. E] 164-81-1348 S[illegible] [illegible] [illegible] MB [illegible] DEC [illegible]
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On 12/4/71 at Minneapolis, Minnesota File# MP 164-73
by SA [REDACTED] :bab Date dictated 12/9/71
This document contains neither recommendations nor conclusions of the FBI. It is the property of the FBI and is loaned to your agency; it and its contents are not to be distributed outside your agency.
DB Cooper-27164
1. Line G-I-K-M represents the airplane's flight path as it approached the Portland (PDX) VOR.
2. The cabin pressure "bump" occurred at 0410 GMT, the time being re- corded by the NWA Flight Operations Office (NWAFO) in Minneapolis. It is a virtual certainty that the pressure "bump" marks the time that the high-jacker (HJ) left the airplane. The airplane was at Point A at that time, thus the HJ's body would land at Point A if [guess: his] 'chutes did not open (unlikely).
3. If it is assumed that the HJ was a highly expert parachutist; and would thus free-fall as far as practicable to insure the best accur- acy of his touchdown point, he would land slightly to the NE of Point [guess: L] due to his drifting with the wind from the point of 'chute opening.
4. If the HJ opened his 'chute as soon as he left the airplane, he would drift along the line A-B and would touch down at [guess: B]. All lines parallel to A-B are lines along which the HJ would drift if he opened his 'chute relatively early.
5. The parallelogram indicated by C-D-F-E represents the boundaries of the probable touchdown area adjusted for possible time errors and for the above described wind drift; It is probably the most fruitful search area.
6. The earliest the HJ could have jumped is 0406, and this point is represented by Point G.
7. The crew believes the pressure "bump" occurred at 0410, but in any event are certain it occurred before 0415. If the HJ jumped at 0406 (unlikely) he would land on or near line G-H. If he jumped at 0415 he would land on or near line MN.
8. Based on the above explanation of Figure 1, and on all the assump- tions based in its preparation, the following are pertinent:
a. The most likely landing point for the HJ is at, or slightly NE of Point A.
b. His landing point is more likely to be in area C-D-F-E than any other.
c. It is possible his landing point could be anywhere within the area shown (G-H-N-M), but the probability goes down as the ends of this area are approached.
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DB Cooper-27165
Figure 1 12/4/71
Nautical Miles / Statute Miles scale bar
PORTLAND sectional chart
30' (Joins Seattle)
6500 MSL 8500 MSL
123° ... 122°
Key locations and navigational data visible: - KBAM 1274 - KELSO/LONGVIEW 25 L 35 U - 2600, 4500 MSL, 2509 - Rainier - Kalama - Pigeon Springs - St Helens - La Center - RIDGEFIELD - Ridgefield - 1772 - 2206 - COLUMBIA CO, 1700 - Scappoose - Battle Ground - 123.65 VORTAC PORTLAND - N15.6 CH 15 PDX - FSS PORTLAND INTL - ATIS 119.0 - 26 L 88 II - GEN AIS/10R - ATIS 51.8/124.18 - GROVES 420 - 24 - SAUVIES ISLAND 21S SVY [illegible] - North Plains - HILLSBORO 04T-40I - 119.3 - HILLSBORO POEHLER 25S-13 - SWAN ISLAND - FLAM.NGO 125 - PEARSON L 30 [illegible] - Vancouver - EVERGREEN 8004 - 12 [illegible] nads - Camas 760 - Washougal - 636 - 2049, 1589 - Aloha - PORTLAND - LT SCOP 1436 - TROHS 797 L 19 - PORTLAND TROUTDALE 36 L 46 - 1129 - Magnetic disturbance of as much as 4° exists at ground level between Bric al Veil and Troutdale - McKINNON 640 30 - STARKS 210-26 - Laurelwood - Tigard - MEYLR 695-26 - OSWEGO 636 - AS / FEZ / 1150 - WITHYCOMBE AAF/ARNG 19G L 15 - Eagle Creek - EAGLE NEST (Pvt) 425-25 - RICH 600-24 U - Sandy - FARMINGTON 163 - Tualatin - Sherwood - 1442 - Willamette - Oregon City - Redland - SKYHILL (Pvt) 724 - Opla - Golf course - GLADSTONE - OREGON CITY 385 L 25 U - PARK LUMBER 405 14 - [illegible]orada - SPORTSMAN 174 L 26 - AURORA 195 L 41 U - DIETZ 180 / 78 - HIGHLAND 805-20 - 1594 - MULINO 150 L 21 L - Sawmill - LENHARDT 165-22 - Molalla - MAVERICK - 4219 - 4128, 3926, 3910, 2110, 1170, 4056, 2137, 4281, 4771 - Soda Pk 4575 - Cape Horn - [illegible] CO - Yacolt - Amboy
DB Cooper-27166
Serials: MP 164-73, SE 164-81-1348
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