As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYSTEM, FRM 2911XD00 C HYD ADP DEMAND PUMP DOES NOT PROVIDE FULL PRESS IN AUTO MODE. PRESS NORMAL W/SW IN ON POSITION. EICAS MSG "C HYD DEM PUMP' ILLUM W/CENTER SYSTEM DEMAND. PERFORMED FIM 29-11-00 REPLACED MODULATING VALVE FOR THE AIR DRIVEN PUMP PER AMM 29-11-04 OPS AND PRESSURE CHECKS GOOD. NO FAULTS NOTED. OK TO CONTINUE.