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NROIS CG PLAIN | 852PH NITEL 4-14-72 £OM TO DIRECTOR (164-2111 SALT LAKE CITY (164-24) SEATTLE (164-81) FROM CHICAGO (164-297) ' NORJAK. RE SALT LAKE CITY TELS APRIL ELEVEN, LAST. , SEARCH PROCEEDING AT UNITED AIR LINE HEADQUARTERS, ELK Ween eee ‘GROVE, ILLINOIS, OF FLIGHT RECORDS FOR ett UAL FLIGHTS FROM SALT LAKE CITY TO PORTLAND noventen fen, NINETEEN Ca eetry ONE el bl TO NOVEMBER TWENTY FOUR, NINETEEN SEVENTY ONE AND FROM SEATTLE- i! PORTLAND ‘TO SALT LAKE CITY NOVEMBER TEN TO NOVEMBER TWENTY SEVEN NINETEEN SEVENTY ONE. AS SOON AS SEARCH COMPLETED, BUREAU AND OFFICE: OF ORIGIN WILL BE ADVISED. “END - DCA FBI SE CLR “Hin — Fl. PSST DB Cooper-/7973