What happens to the motive flow shutoff valves when the L/R switch is set to NORM?

When the L/R switch is set to NORM, the motive flow shutoff valves remain open. This is by design, as setting the switch to the NORM position indicates that the system is in its normal operational mode. In this configuration, the valves are required to allow for the continuous flow of fuel to maintain proper engine operation.

This ensures that fuel is readily available for engine start-up and operation, thereby preventing any interruptions that might occur if the valves were to close or be disabled. The design of the system focuses on reliability and safety, making it essential for the shutoff valves to allow uninterrupted fuel flow while in the NORM position so that performance remains optimal during flight.