As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM - C HYD PRIM 1 EICAS AND PRESS LIGHT ILLUMINATED. OPERATIONAL CHECK OF CENTER HYD (ELECTRIC) PUMPS PER AMM 29-11-00. OPS CHK OK. PERFORMED PILOT ENGINE RUN OF 1 & 2 ENG. CYCLED ALL (4) ELEC PUMPS OFF THEN ON. COULD NOT RECREATE. OK FOR SVC