As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND HYDRAULIC LEAK FROM TAIL DRAIN DURING 1 SVC WALK AROUND. YELLOW SYSTEM HAS HISTORY OF SERVICING SINCE 13 JAN. APPEARS TO BE FROM TAIL AREA. FOUND RT YELLOW SYS HYD RETURN LINE FROM RUDDER SERVO CONTROL LEAKING AT BULKHEAD ELBOW AT Z310. (MKD WITH TAPE) ORDERED ELBOW (PCN 710-2033). NOTICED ELBOW IS STEEL. (SUSPECT RETURN LINE). RPLC'D FIT (PARTIAL). COMPLETED INSTALLATION OF FITTING. NO LEAKS DETECTED.