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FROM SUBJECT: OPTIONAL FORM NO. 16 MAY 1082 EQITION Sa remn (a cer) oreite | UNITED STATES GOVERNMENT Memorandum > sac, ‘SEATTLE (164-81) DATE? 12/4/71 > SA JOHN L KRICHAM (P) UNKNOWN SUBJECT; NORTHWEST AIRLINES FLIGHT #305, PORTLAND TO SEATTLE, 11/24/72 : CAA ~ HIJACKING; EXTORTION 00: SEATTLE BUPILE 164-2111 ee SuB N. b6 b7C On 12/4/71 called to sugges g ity tha radio receiver was in the hijacker's attache case. This couad be used in conjunction with a low frequency transmitter on the ground - to know when to drop. He said this would put one within a3 mile radius from.a 10,000 foot level jump on target. However, he noted too, that any transisterized receiver in use should be reflected in the plane instruments - so pilot should be able to tell that such was the case (transceiver in use) iis 164-F/- oa . DB Coopek:308 Buy U.S. Savings Bonds Regularly on the Payroll Savings Plan ‘.