As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 198 -ATB- DUE TO CENTER HYDRAULIC SYSTEM PRESSURE LOW EICAS MESSAGE AND ASSOCIATED LIGHT ILLUMINATED. HYDRAULIC PUMP PRESSURES AND SYSTEM QUANTITY NORMAL. CORRECTIVE ACTION: REPLACED CENTER HYDRAULIC SYSTEM LOW PRESSURE SWITCH AND PACKING. (9011065)