What was found
THE FLIGHT CREW NOTED A TOTAL LOSS OF HYDRAULIC PRESSURE UPON DECENT AND PERFORMED AND EMERGENCY LANDING GEAR MANUAL EXTENSION. THE AIRCRAFT LANDED SAFELY AND HYDRAULIC FLUID WAS SEEN LEAKING FROM THE RT ENGINE NACELLE AREA. MAINTENANCE INVESTIGATED THE DISCREPANCY AND FOUND A PIN HOLE IN THE RT HSOV SUCTION LINE THAT CAUSE THE LOSS OF HYDRAULIC FLUID PRESSURE. THE LINE WAS REPLACED, HYDRAULIC SYSTEM SERVICED, AND GROUND ENGINE PERFORMANCE RUNS WITH FLAPS FULL TRAVEL CHECK WERE SUCCESSFULLY PERFORMED. THE AIRCRAFT RETURNED TO SERVICE AND FLEW TO HOME BASE IN DFW WITHOUT FURTHER INCIDENT.