What was found
DURING DEPARTURE FROM KBUR, THE FLIGHT CREW REPORTED THAT THE NR 1 & 2 HYDRAULIC LOW-PRESSURE ANNUNCIATORS ILLUMINATED AS WELL AS A LOW-PRESSURE INDICATION ON THE PRESSURE GAUGE. A MANUAL LANDING GEAR EXTENSION WAS PERFORMED AND THE AIRCRAFT RETURNED TO KBUR SAFELY. MAINTENANCE FOUND A DEFECTIVE HYDRAULIC SUPPLY LINE TO THE ENGINE DRIVEN PUMP AND REPLACED IT WITH A SERVICEABLE LINE. OPERATIONAL AND LEAK CHECKS WERE SUCCESSFUL, AND THE AIRCRAFT HAS BEEN RETURNED TO SERVICE.