As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING DESCENT THE 'LO HYD LEVEL' ANNUNCIATOR ILLUMINATED. CREW RAN CHECKLIST. GEAR AND FLAPS EXTENDED NORMALLY AND THE 'LO HYD LEVEL' ANNUNCIATOR CLEARED. EMERGENCY WAS DECLARED AND LANDING WAS UNEVENTFUL. CREW NOTICED HYDRAULIC FLUID ON THE GROUND UNDER THE RIGHT ENGINE DURING POST FLIGHT. MAINTENANCE REPLACED THE LEAKING RIGHT ENGINE INBOARD THRUST REVERSER ACTUATOR. HYDRAULIC SYSTEM WAS SERVICED, GROUND CHECKS PERFORMED WITH NO DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE.