What was found
CREW REPORTED THAT RIGHT AND LEFT HYDRAULIC PRESSURE LIGHTS CAME ON IN-FLIGHT FLUCTUATING AND ZERO PSI HYDRAULIC PRESSURE, FLEW APPROXIMATELY 25 MINUTES IN THIS CONDITION. LANDED WITHOUT INCIDENT. MAINTENANCE FOUND CRACKED HYDRAULIC LINE IN LEFT WING STUB ROOT ABOVE ACM. REPLACED LINE AND SERVICED HYDRAULIC SYSTEM. PERFORMED ENGINE RUN-UPS AND LEAK CHECK SYSTEM. RESULTS: SATISFACTORY. AIRCRAFT RELEASED FOR SERVICE. (X)