As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYD CONTROL 4 EICAS ADVISORY MESSAGE WITH HYDIM 4 STATUS MESSAGE. BOEING AHM PROGRAM HAS DETECTED FAULT MESSAGE 29184 HYDIM-4 FAIL OR HYDIM-4 OUTPUT BUS FAIL. REPLACED CARD, REPLACED RELAY R7415 HYD PUMP CONT AUX AC ACP GND END RUN ON NR 1 & NR 4 ENG, CYCLED FLAPS THRU FULL CYC. NIL ADVISOR STS MSG GENERATED, IAW MM29-11 -42, OPERATIONS CHECKED GOOD.