What was found
DUAL FMC FAIL IMMEDIATELY AFTER TAKEOFF, FAILED 8-10 TIMES ENROUTE.(<P>PERFORMED FMC L & R GROUND TEST IAW AMM 34-61-00, NO DEFECTS NOTED. PERFORMED FMC L & R SERVO LOOP GROUND TEST, NO DEFECT NOTED.</P><P>LP 1077093 - M6: WHEN GROUND POWER WAS PULLED, PROBLEM REPEATED. REMOVED AND REPLACED L FMC IAW AMM 34-61-01. PERFORMED GROUND TEST IAW AMM 34-61-01, NO DEFECTS NOTED. OFF PART (PN: 4052508-960, SN: 02348927).</P><P>LP 1077094 - M7: REMOVED AND REPLACED R FMC IAW AMM 34-61-01. PERFORMED SOFTWARE CROSSLOAD IAW AMM 34-61-00. PERFORMED GROUND TEST IAW AMM 34-61-00, NO DEFECTS NOTED. PERFORMED AUTOLAND UNIQUE TEST IAW AMM 22-10-00. AIRCRAFT REMAINS CATIIIB. </P>)