Part 76, page 89

Transcript

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

The att[ached] plot is T[he] [illegible] theearch [area] of possible landing [area] of the hij[acker] [illegible]. It is based on the fol[lowing]:

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-- Aircraft position USAF radar data from McChord AFB [furnished] by [REDACTED]

-- Probable jump time (0811 GMT) from an analysis of the recorded communication from the flight [crew] to the cabin [pressure] [the] [illegible]. Flight [path] [constructed] on January 6 or [thereafter] first the p[ilot] are fluctuation almost certainly occurred at the time the HJ left the airplane.

-- Wind information from 10,000' IASL to the ground as determined by [REDACTED] (NWA)

-- Human body [trajectories] from data furnished by The Boeing Company (its [staff]) and NWA [REDACTED] [para] chute open condition) who is an expert para- chutist.

-- Time correlation from the above USAF radar information and from the NWA communications network tape recording.

-- Airplane airspeed and altitude from the airplane's flight recorder.

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The plot is explained as follows:

1. The heavy dashed line C-D--E--S defines the airplane's probable ground track.

2. Line G--I--J--K defines the westernmost, and Line L--M--N--O the easternmost probable airplane ground tracks based on the stated position tolerance of ±.5 nautical mile of the USAF radar plot.

3. Lines A--B, H--P, and O--[R]are the average wind vectors between 10,000' MSL and the ground, and are the lines parallel to which the HJ would drift after the parachute had opened.

4. Line H--S--T defines the northernmost (earliest) points over which the HJ probably left the airplane. Line K--F--O defines the southernmost (latest) points over which the HJ probably left the airplane. The north--south span of possible jump [positions] is a product of the radar position tolerance of ±.5 mile, and the possible communication time determination tolerance of ±1 minute.

5. The area within the boundary defined by Points H--F--Q--R--O--K--J--I--H marks the extreme limits of probable landing points based on the above tolerances. That is, [assuming] the the highest possible degree of inaccuracy in aircraft position, jump time, wind vector, etc., all probable HJ landing points would lie within the area defined by this line.

6. If it is assumed aircraft position, jump time, wind vector, and other inputs [are] all accurate (without allowances for the above stated tolerances):

a. The HJ's landing point would be at Point A if his 'chute did not open, or if he opened it so [late] that the [brief] [spread] caused 'chute [deployment] that resulted [in] the equivalent of a free-fall to the ground. (The body [would] badly [trajectory] [one] to

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17

DB Cooper-33058