As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PRELIMINARY INSPECTION DISCOVERED ACCUMULATION OF HYDRAULIC FLUID ON AFT FUSELAGE EXTERIOR. UPON FURTHER INVESTIGATION FOUND HYDRAULIC SYSTEM ECOLOGY BOTTLE FULL AND OVER FLOWING. FURTHER TROUBLE SHOOTING WAS PERFORMED AND FOUND MAIN HYDRAULIC PUMP ASSEMBLY INTERNAL LEAKAGE CAUSING HYDRAULIC FLUID TO DRAIN FROM PUMP ASSEMBLY FILLING ECOLOGY BOTTLE. REMOVED AND REPLACED HYDRAULIC PUMP ASSEMBLY P/N HJ1-12913-101-009 PER AMM 29-11-12. OPERATIONALLY CHECK GOOD WITH NO FURTHER DEFECTS NOTED.