As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LAS - INFLIGHT IAD-LAX - CREW REPORTED LOW PRESSURE LIGHTS FOR BOTH HYDRAULIC SYSTEMS CAME ON. EMERGENCY DECLARED, LANDED LAS WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. BOTH HYDRAULIC SYSTEM LOW PRESSURE LIGHTS ON. REPLACED RIGHT AND LEFT ENGINE DRIVEN HYDRAULIC PUMPS AND HYDRAULIC RESERVOIR PRESSURE MODULE MOD 7321124005. SYSTEM GROUND CHECK NORMAL OPERATION.