As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
HYDRAULIC FLUID LOSS IN FLIGHT INFLIGHT EMERGENCY DECLARED. MAINTENANCE FINDINGS, ADP BYPASS HAD OPENED AND WAS LEAKING HYDRAULIC FLUID. ISSUED ECA 04892 REPLACED CENTER ADP PER MM 29-11-03 AND LEAK CHECK OK. P/N OFF 3268792-9 S/N OFF 1011. P/N ON 3268792-9 S/N ON 727.