ReportSeattle Air Route Traffic Control Center transcription of air-ground communications with NW Flight 305page 5 of 7
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Part 36, page 19

DB Cooper-6242

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Open in FBI Vault (Part 36, page 19 of the PDF)

FBI 164-81, Vault Part 36 p. 19 (DB Cooper-6242), Report — cooper.theunsolved.net/parts/Cooper-Part-36/pages/19

Transcript

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Page 4

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SEA R6 Negative sir Eugene altimeter three sero sero six

NW 305 Okay switching

SEA R6 Negative sir remain on this frequency that's an altimeter ah the current altimeter is three zero one one

0446:06 NW 305 ah okay three sero one one (8:46 Pm, PST)

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0454:47 SEA R6 Northwest three sero five Seattle radio check

NW 305 Three oh five land and clear

0454:53 SEA R6 Roger sir I lost your transponder

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0503:36 SEA R6 Northwest three zero five contact Seattle Center now on one two five point three

0503:41 NW 305 Okay twenty five point three Northwest three oh five

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0503:57 NW 305 Seattle Center Northwest three sero five at ten thousand

0504:05 SEA R10 Northwest three sero five Seattle Center ident (9:04 8, M-PST)

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- 198 - DB Cooper-6242

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(8:46 Pm, PST) (9:04 8, M-PST)