As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
VTK AND MAP FAILURE FLAGS DISPLAYED ON CAPTAIN'S NAVIGATIONAL DISPLAY AND NO FMC DATA DISPLAYED ON BOTH CDU'S. RAN QRH AND CONFIGURED FOR SINGLE FMC OPERATION. GROUNDED - YES. PERFORMED FMC RESET PER FIM TASK 34-61 TASK LEFT HAND VTK AND MAP FLAGS GONE. LEFT FMC OPS CHECK NORMAL.