As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 712 FROM TOL TO DEN. 10 MINUTES AFTER TAKE OFF AT FL190, CREW NOTICED LOSS OF SYSTEM A-HYDRAULIC FLUID FOLLOWED BY ILLUMINATION OF HYDRAULIC LOW PRESSURE LIGHTS. CREW DUMPED 600 LBS OF FUEL, RETURNED TO TOL, AND LANDED WITHOUT INCIDENT. FOUND RT OUTBOARD FLAP HYDRAULIC DRIVE MOTOR LEAKING. REPLACED FLAP DRIVE MOTOR. OPS AND LEAK CHECK GOOD. AIRCRAFT RETURNED TO SERVICE.