What was found
JFK TEST FLIGHT T9640/06SEP - AFTER TAKEOFF CREW REPORTED MAIN LANDING GEAR UNSAFE LIGHT. FOLLOWED BY LEFT SYSTEM HYDRAULIC LOSS. LANDED JFK WITHOUT INCIDENT. AFTER LANDING RIGHT GEAR DOOR WAS EXTENDED AND WHEEL WELL WAS SATURATED WITH HYDRAULIC FLUID. FOUND FLEX LINE TO RIGHT MAIN LANDING GEAR DOOR ACTUATOR WITH HOLE IN LINE. REPLACED HOSE. SYSTEM GROUND CHECKED NORMAL OPERATION.