What was found
THE AIRCRAFT LOST RT HYDRAULIC SYSTEM PRESSURE WHILE EN ROUTE TO CLE. THE HYDRAULIC QUANTITY INDICATION FLUCTUATED BETWEEN TWO AND TWELVE QUARTS. THE LANDING GEAR WAS LOWERED USING ALTERNATE EXTENSION HANDLE. WHEN THE AIRCRAFT ARRIVED IN CLE, THE NOSE GEAR STEERING WAS INOPERATIVE. THE AIRCRAFT WAS TOWED TO THE GATE. MAINTENANCE FOUND HYDRAULIC LINE TO LT MLG DOOR LATCH LEAKING. THE LINE WAS REPLACED USING FLEX LINE AND A DIP WAS ISSUED TO REPLACE THE FLEX LINE BEFORE 1,200 HOURS OR 500 FLIGHTS.