What was found
DURING DECENT NOSE GEAR HYDRAULIC LINE RUPTURED WHEN THE LANDING GEAR WAS SELECTED DOWN, THE UTILITY HYDRAULIC SYSTEM WENT TO ZERO AND UTILITY RESERVOIR WAS EMPTY. THE GEAR UNSAFE LIGHT WAS ILLUMINATED, NOSE GEAR INDICATING STILL IN TRANSIT. THE #1 AND #2 ENGINE DRIVEN HYDRAULIC LIGHTS ALONG WITH THE LEFT SIDE SUCTION BOOST PUMP LIGHT ILLUMINATED. RESULTING IN TAKING EMERGENCY ACTIONS DURING FLIGHT. / REPAIR BY REPLACEMENT OF NOSE LANDING GEAR ACTUATING CYLINDER / NLG DOWN PRESSURE FLEXIBLE HOSE MS28762-6-0290 ACCOMPLISHED REF LOCKHEED SMP581 32-31, UTILITY RESERVOIR SERVICED REF SMP581 12-13, LEAK AND OPS CHECK GOOD. LP#50551