As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CAPTAINS FMC BLANKED OUT IN CRUISE THEN CAME BACK AFTER TWO MINUTES. GROUNDED-YES. ACCOMPLISHED FMCS BITE PROCEDURE LEFT FMC SHOWED NO INFLIGHT FAULTS, TEST PASSED. SENSOR TEST PASSED, NO FAULTS NOTED. STATUS OF ALL SENSORS SHOWED OK. RIGHT FMC SHOWED NO INFLIGHT FAULTS AND ALL SENSORS SHOWED OK STATUS, REF B737-900 FIM TASK 34-61 TASK 801.