As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CRUISE FLIGHT, THE FMC P/RST LIGHT ILLUMINATED ALONG WITH VTK ON CAPTAINS ND. PERFORMED FMC FAIL CHECKLIST IN QRH AND DETERMINED THAT THE LT FMC FAILED. BEARING/DISTANCE INFORMATION FOR LT FMC DID NOT RETURN. CONTINUED WITH FMC SWITCH BOTH ON "RIGHT". ACFT GROUNDED. PERFORMED FIM 34-61, TASK 836 AND SUCCESSFULLY RESET NR 1 FMC. PERFORMED BITE CHECK IAW FIM TASK 34-61, TASK 801 NO FAULTS NOTED. ACFT OK FOR CONTINUED SERVICE.