Part 99, page 177
DB Cooper-44661Serials SE 164-81, SE 164-81-845
Document date 4 December 1971
FBI 164-81, Vault Part 99 p. 177 (DB Cooper-44661), Memo, dated 4 Dec 1971, serial SE 164-81-845 (as read from the transcript) — cooper.theunsolved.net/parts/Cooper-Part-99/pages/177
Transcript
The scan is the source; the transcript is machine-generated from it.
SAC, SEATTLE (164-81) (P) 12/4/71
SA THOMAS J. MANNING
UNSUB; Northwest Airlines Flight 305, Portland to Seattle, 11/24/71 CAA - HIJACKING OO: Seattle
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Re San Francisco teletype to Bureau and Seattle, 11/26/71
[REDACTED], Washington was contacted on 12/1/71 and he was not able to furnish any details on the helicopter sightings. He also mentioned [REDACTED], and stated [REDACTED] [REDACTED] but could provide no information other than that furnished in the teletype.
It was noted that the area [REDACTED] number of airfields and these are regular sized to small private strips and there is a lot of air traffic [REDACTED] by small planes. Further it is known by the writer that both the state Patrol and the US Army have helicopters flying [REDACTED] [REDACTED] frequently due to its proximity to IS 5 which is a main guiding line for such craft.
No other information of value was obtained [REDACTED] re the aircraft and in view of the traffic in the air [REDACTED] it is not possible to identify the aircraft he mentions and further investigation is not warranted in the [REDACTED] RA.
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Sub.35 16 4-81-845 mg Lmg
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(2) TJM/
DB COOPER-44661