System and method for a lock valve for a hydraulic actuator. The lock valve includes a valve housing coupled to the hydraulic actuator. The valve housing defines a chamber in selective fluid communication with a hydraulic circuit. The lock valve includes a valve body received within the chamber and responsive to the hydraulic circuit to move to an unlock position in which the lock valve is unlocked. The valve body includes a rod having a first end and an opposite second end. The valve body includes a head coupled to the rod between the first end and the second end. The head is responsive to the hydraulic circuit to move the valve body to the unlock position, and in the unlock position, the first end of the rod extends outwardly from the valve housing to visually indicate the lock valve is unlocked.