When should the MOR handle be used?

The correct answer indicates that the MOR (Manual Override) handle should be used specifically if the automatic system fails or if there is a need for seat separation at altitudes above 14,000 feet. This is pivotal during flight operations, as the automatic system is designed to manage specific critical functions related to ejection. If the system is compromised or fails to operate correctly, utilizing the MOR handle ensures that the pilot can manually initiate ejection, maintaining safety and control in an emergency situation.

Using the MOR handle above 14,000 feet is particularly important since the risks associated with high-altitude ejection, such as the deployment of the parachute at high speeds, necessitate that the pilot has a reliable method for safely exiting the aircraft. This option contrasts with other scenarios where intervention may not be necessary or safe, leading to a clear guideline for use in emergencies.