As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE RIGHT FMC FAILED. SELECTED BOTH ON LEFT, CONTINUED FLIGHT WITH BOTH ON LEFT. CONTINUED FLIGHT WITH BOTH ON LEFT SUCCESSFULLY. GROUNDED - YES. RETURNED FMC SELECTOR SWITCH TO NORMAL. PERFORMED TROUBLESHOOTING PER FIM 34-61 TASK 807. RIGHT FMC RESTORED TO NORMAL OPERATION. CHECKS GOOD FOR SERVICE.