As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMB-OUT FROM KTOL, THE CREW NOTICED HYDRAULIC QUANTITY DECREASING. THE CREW RETURNED TO KTOL AND LANDED WITHOUT INCIDENT. MAINTENANCE INSPECTED THE AIRCRAFT AND FOUND THAT THE RUDDER HYDRAULIC PUMP WAS DEFECTIVE. MAINTENANCE REMOVED AND REPLACED THE RUDDER HYDRAULIC PUMP, AND RESERVICED HYDRAULIC SYSTEM. MAINTENANCE PERFORMED OPERATIONAL AND LEAK CHECK. OPERATIONAL CHECK WAS GOOD AND NO LEAKS DETECTED IAW MAINTENANCE MANUAL 27-24-2. AIRCRAFT RETURNED TO SERVICE.