As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
COMPLETED ENGINE START CHECKLIST, GROUND CREW SAW HYDRAULIC LEAK. EICAS STATUS PG. HYDRAULIC CETER QUANTITY AT 0.58 ENGINES WERE SHUT DOWN AND MTX ENTERED FLIGHTDECK AND GROUNDED AC . MTX FOUND (ADP CTR CASE DRAIN MODULE) LEAKING AND REPLACED MODULE INSTL-PRESSURE AND CASE DRAIN FILTER FOR AIR DRIVEN PUMP IAW AMM 29-11-19 LEAK CHECK GOOD .SERVICED CENTER HYD RESERVOIR IAW AMM 12-12-01. AND RETURNED AC TO SERVICE .