What level of integrity results from a dual GEN failure?

In the context of aircraft systems, particularly in the Pilatus PC-12 NG, understanding the integrity levels associated with dual generator (GEN) failures is essential for flight safety and operational efficiency. A dual GEN failure refers to the loss of both generators, which significantly impacts the aircraft's electrical system.

When dual generator failure occurs, the aircraft is generally designed to maintain a minimum level of operational integrity to ensure that critical systems remain functional. In this case, a second level of integrity is achieved. This level means that while the aircraft can still operate, it is crucial for the pilots and crew to manage the electrical load and be prepared for potential limitations in performance and available systems.

By operating under these conditions, the aircraft's safety systems and essential functions are still accessible, but redundancy is compromised. Therefore, the pilots must act accordingly, which emphasizes the efficiency of the design in maintaining a certain degree of integrity even in failure scenarios. In contrast, higher levels of integrity would typically imply more redundancy and capabilities than what remains in this situation, making a second level the most appropriate answer.