Part 10, page 501
DB Cooper-1741Serials SE 164-81
Document date 26 November 1971
FBI 164-81, Vault Part 10 p. 501 (DB Cooper-1741), Memo, dated 26 Nov 1971 — cooper.theunsolved.net/parts/Cooper-Part-10/pages/501
Transcript
The scan is the source; the transcript is machine-generated from it.
OPTIONAL FORM NO. 10 MAY 1962 EDITION GSA FPMR (41 CFR) 101-11.6 UNITED STATES GOVERNMENT Memorandum
TO : SAC, SEATTLE (164-81) DATE: 11/26/71
FROM : SA THOMAS J. MANNING
SUBJECT: UNSUB; NORTHWEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/71 CAA - HIJACKING; EXTORTION OO: SEATTLE
---
FLASHING LIGHTS OF AIRCRAFT,
---
On 11/25/71, a search of pertinent area as furnished by Northwest Airlines personnel, commenced. Ground search initiated on 11/25/71, in limited way.
On 11/26/71, two Army helicopters from Gray Field, one Weyerhauser Company helicopter and a Bonneville Power Administration helicopter, were utilized in covering a area of search, including the route of the hijacked plane from Lake Merwin on the north, to the vicinity of Battle Ground, on the south. Due to weather conditions, only three of six sections were able to be covered. Ground search negative except for an area in the north easterly quadrant of the search, where two individuals made comments concerning low flying aircraft at pertinent time. One individual advised the craft was so low that it shook their house and this time was fixed at approximately 8:20 PM, but no positive time could be given. This individual stated that weather conditions at that time in this area, were misting rain.
A second individual in the Amboy, Washington vicinity, advised that at approximately 8:00 PM, with misting rain, conditions, a low flying jet plane, going north to south and unusually low, was sited. ALL THE LIGHTS on this plane, including the cabin lights, were going on and off. This person was questioned concerning the navigation lights and stated emphatically, that ALL THE LIGHTS were going on and off.
No observation of objects dropping from plane reported at this time.
---
The Lake Merwin area has been su[b]merged to[illegible] intense boat search by the Cowlitz County [Sheriff's] [illegible] with negative results, except for the siting of [a] whi[te] [illegible]
TJM:klb THIS HAS BEEN DONE FBI - SEATTLE (3)
---
DB Cooper-1741
---
Buy U.S. Savings Bonds Regularly on the Payroll Savings Plan