As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DFW - CREW REPORTED LEFT HYDRAULIC LOW PRESSURE LLIGHT ILLUMINATED DURING CLIMBOUT. FLIGHT RETURNED DFW LANDED WITHOUT INCIDENT. AIRCRAFT REMOVED FROM SERVICE. REPLACED NUMBER ONE ENGINE HYDRAULIC PUMP AND CASE DRAIN FILTER. SYSTEM GROUND CHECK NORMAL OPERATION.