As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VTK FLAG FMC NR 1. PERFORMED FIM TASK 34 61 TASK 801 'VTK FLAG SHOWS CAPTAINS'. FMCS IN FLIGHT FAULTS INDICATED L FMC FAULTS DETECTED BY BOTH FMC'S. A/C HAS PREVIOUS HISTORY OF VTK FLAG. REQUIRES LEFT FMC REPLACEMENT. REPLACED LEFT FMC REF MM34 61 02. OPS NORMAL.