As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, LEFT SIDE FMC INTERMITTANT VTK. ACFT GROUNDED. CREW REPORTED LEFT FMC OPERATED INTERMITTANT SEVERAL TIMES. REMOVED AND REPLACED THE LEFT FMC COMPUTER IAW AMM 34-61-02. PERFORMED INSTALL TEST STEP E. CROSSLOADED ALL SWITCHES FROM RT SIDE FMC. ADJUSTED PERFORMANCE FACTOR IAW AMM 34-61-00. FMC OPS TESTED IAW AMM 34-61-00. SYS CHECKED NORMAL. NO HISTORY.