What happens if the CCU transfer does not occur automatically due to a failure?

When the Cargo Compartment Unit (CCU) transfer does not occur automatically due to a failure, the correct response involves selecting switch 3. This action is a step in the recovery procedure to manually initiate the CCU transfer, ensuring that the necessary systems can still function and manage cargo effectively, particularly during flight operations.

Manual intervention is crucial in such scenarios because the inability of the CCU to transfer automatically can lead to significant implications for cargo management and overall aircraft performance.

Selection of switch 3 is specifically designed for this purpose; it directly addresses the failure of the automatic transfer and allows for control over the CCU functionality. Understanding the appropriate switch to activate not only illustrates familiarity with the operational procedures of the C-17 but also highlights the importance of crew resource management in troubleshooting and maintaining aircraft systems during critical situations.