As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LEFT HMG VAL STATUS MSG AFTER BLOCK OUT AC RETURNED TO GATE AND MAINTENANCE GROUNDED AC RIGHT HMG PREVIOUSLY DEFERRED IAW ABX-24-25-2-1F, FOLLOWED DEACTIVATION PROCEDURES IAW AMM 24-00-00, REMAINS ETOPS 180. STATUS MESSAGE CLEARED.RETURNED AC TO SERVICE . AND AC DEPARTED