As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CLT - FLT 1702 - ON CLIMBOUT, B-HYDRAULIC SYSTEM LOW PRESSURE LIGHT ILLUMINATED AND QUANTITY LEVEL BEGAN TO DROP. FLIGHT RETURNED TO CLT WHERE LANDING WAS WITHOUT FURTHER INCIDENT. MAINTENANCE CHANGED B-SYSTEM HYDRAULIC ELECTRIC PUMP LINE FROM ACCUM TO B-SYSTEM RETURN MODULE AND REPLACED B-SYSTEM ENGINE PUMP. (W)