As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - DECLARED EMERGENCY ON DESCENT ON ACCOUNT OF RIGHT ENGINE LOW PRESSURE LIGHT ILLUMINATED. IN FLIGHT LEFT ENGINE HYDRAULIC LOW PRESSURE LIGHT FLICKERED ON AND OFF SEVERAL TIMES IN CRUISE. LANDED DFW WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED ENGINES NUMBER 1 AND 2 HYDRAULIC PUMPS. SYSTEM GROUND CHECK NORMAL OPERATION.