What was found
FO CDU BLANK. CDU FUNC NORMAL UNTIL CRUISE THEN FLICKERED AND BL ANKED REF LOGPAGE 6732059 FOR LOGPAGE SIGNOFF.**CHRONIC LVL-0**DUE TO RECENT HISTORY OF FIRST OFFICERS CDU NOT RESPONDING OR FLICKERING ACCOMPISH THE FOLLOWING: 1) FIM 34-61 TREE 843, REPAIR AND REPORT ALL FAULTS. 2) IF NO FAULTS FOUND REPLACE THE FIRST OFFICERS CDU IAW AMM 34-61-02/401. THANKS! ORDLM GABRIEL TECH SUPP:FLT CREW STATED F/O CDU WAS STEADILY ON AFTER ENGINES WERE OFF.REF WD36-61-21-1A,PLEASE REMOVE CDU AND CHECK AT D467P PIN 40/41 FOR VAC,41 TO GND,36 TO GND,34 TO GND.CHECK CONNECTOR CONTACTS FOR INTEGRITY.THANKS CARRIED BY ELB PANEL, MCDU, ET OFF 19-3461-9-0006 3262 ON 0000 PANEL, MCDU, ET OFF 19-3461-9-0006 3262 ON 19-3461-9-0006 1593 PERFORMED FIM 34-61-843 NO DEFECTS WHERE NOTED ALSO SHOT PINS 40/41 FOR VAC AND PINS 41,36,AND 34 TO GND FOR INTEGRITY CHECK CHECK GOOD NO DEFECTS NOTED AT THIS TIME R&R FO CDU REF AMM 34-61-02-400-802 OPS CHECK GOOD NO DEFECTS NOTED AT THIS TIME. FOCDU REPLACED AS PRECAUTIONARY REQUESTED BY TECH SUPPORT FUP CLEARED PARTS USED: 19-3461-9-0006,QTY :1 ROTABLE PARTS CHANGE WAS INDICATED - TT # 1544614 SN OFF 3262.