What was found
AUA INFLIGHT T1780/06APR - CREW REPORTED LOSS OF QUANTITY AND PRESSURE ON LEFT HYDRAULIC SYSTEM. RETURNED TO AUA AND LANDED WITHOUT INCIDENT. MANUALLY LOWERED FLAPS AND LANDING GEAR. AIRCRAFT WAS TOWED OFF RUNWAY. FOUND ONE HYDRAULIC LINE ON RIGHT MAIN GEAR DOWN LOCK ACTUATOR LEAKING. REPLACED RIGHT MAIN GEAR DOWN LOCK ACTUATOR FLEX LINE WITH TEMPORARY HYDRAULIC FLEX LINE. SERVICED LEFT SYSTEM TO FULL. SYSTEM GROUND CHECKED NORMAL OPERATION.