As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT FMC FAILED DURING CRUISE WITH VTK AND MAP FLAGS ON CAPTAIN'S ND. NORMAL OPERATION RESTORED BEFORE QRH PROCEDURE. GROUNDED - YES. OPS TEST FMC. NO FAULTS FOUND. PERFORMED B737-900 FIM 34-61 TASK 836 NO FAULTS PRESENT PER FIM FAULT WAS INTERMITTENT NO ACTION REQUIRED.