As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) DURING PILOT WALK-AROUND INSPECTION OF ACFT PRIOR TO FLIGHT FOUND HYDRAULIC FLUID LEAKING FROM NR 2 WING ROOT NEAR FLAPS. HYDRAULIC FLUID FOUND PUDDLING ON THE GROUND UNDER THE NR 2 SIDE OF THE ACFT. UPON FURTHER INVESTIGATION THE LANDING GEAR BYPASS VALVE WAS FOUND TO BE CRACKED.