Which of the following is NOT inhibited by the T.O. INHIBIT?

The T.O. INHIBIT function is designed to prevent certain warning alerts and system messages from being displayed during takeoff, allowing pilots to focus on flying the aircraft without distractions from non-critical alerts. The correct choice reflects an alert that is not affected by this function, which means it can still appear during the takeoff phase.

The F/CTL L(R) SIDESTICK FAULT is a critical alert related to the flight control system, indicating a potential malfunction with the sidestick controllers. Because flight control issues are paramount for safe operation, this alert is not inhibited during takeoff.

In contrast, alerts for other systems, such as navigation faults, hydraulic faults, and air pack faults, might not have immediate implications for the aircraft's takeoff performance, thus allowing them to be inhibited during this phase. The system is designed this way to ensure that the flight crew remains aware of critical control issues while not being bogged down by alerts related to less critical systems when operational focus is essential.