As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE AT CRUISE, LEFT FMC WENT BLANK. APPEARED TO RE-BOOT ITSELF AND FUNCTIONED NORMALLY. GROUNDED - YES. ACCOMPLISHED BITE OF LEFT FMC REF FIM 34-61 TASK 801 LEGS G,1,2 FAULTED CDU-L. ALL SENSOR TESTS PASSED FOR LEFT FMC. ACCOMPLISHED CDS BITE NO EXISTING FAULTS AND NO FAULT HISTORY PAST 3 LEGS. ALL TESTS PASSED NO HISTORY 30 DAYS.