As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN ETOPS AIRSPACE AT 0043Z APPROACHING 40N36 POSITION MSG "SINGLE FMC OPERATION. RAN QRH DID NOT RESTORE DUAL OPERATION. CONTINUED SINGLE FMC OPS ON CAPTS SIDE, IT WAS THE F/O'S FMC THAT FAILED. FOUND A/C ON WITH SINGLE FMC OPERATION. PERFORMED FIM 34 61 00 810 807. DUAL FMC RESTORED.