What was found
FLT 915 - HNL-LIH - DURING FLIGHT, THE LOW OIL PRESSURE LIGHT CAME ON AND THE NR 1 ENGINE CSD GENERATOR WAS DISCONNECTED AQ MAINTENANCE WAS CONTACTED AND ADVISED PILOT TO RETURN TO HNL. AIRCRAFT RETURNED TO HNL AND BLOCKED IN T 0154 HOURS WITH NO FURTHER INCIDENT. THE CSD WAS REMOVED AND REPLACED PER MM 24-11-11 AND FORM M137. LEAK AND OPERATIONS CHECK WAS GOOD WITH NO OTHER DEFECTS NOTED. AIRCRAFT WAS RETURNED TO SERVICE. (M)