As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERMITTENT VTK FLAG ON CAPTAINS NAV DISPLAY DURING TAXI IN. GROUNDED - YES. VERIFIED CAPT (LH) FMC IS CYCLING ON & OFF WHILE AT THE GATE. CYCLED L/H FMC C/B NO HELP. A/C CHECKED & RELEASED PER MEL 34-36J. UNABLE TO DUP/VERIFY DISCREP. LEFT FMC CURRENTLY WORKS NORMALLY. NO INFLT FAULTS LOGGED LAST 10 FLTS.