What was found
CUR - AIRCRAFT DEPARTED, LOST A-SYSTEM PRESSURE SHORTLY AFTER TAKEOFF. AIRCRAFT RETURNED TO CUR AND MADE AN UNEVENTFUL LANDING. AFTER BLOCK IN, THE HYDRAULIC INTERCONNECT WAS OPENED. B-SYSTEM DUMPED INTO A-SYSTEM DEPLETING BOTH SYSTEMS. TROUBLESHOOTING FOUND THE RT OUTBOARD FLAP DRIVE MOTOR LEAKING FROM THE CASE AND THE DRAIN LINE. REMOVED AND REPLACED FLAP DRIVE MOTOR IAW MM 27-50, SERVICED BOTH 'A' AND 'B' SYSTEMS TO CAPACITY, ACCOMPLISHED OPS CHECK IAW MM 27-51. OPS CHECKED GOOD, NO LEAKS NOTED, AIRCRAFT RETURNED TO SERVICE.