How is a degraded mode handled in maintenance and operations?

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Degraded mode handling means treating the system as operating with reduced capability and managing risk to preserve safety and essential functions. The correct approach is to switch to degraded or backup procedures designed for the current level of capability, isolate the faulty subsystem to prevent further damage or cascading failures, perform a controlled shutdown of non-critical parts if continuing operation would be unsafe, and schedule corrective maintenance to restore full operation. This approach keeps essential operations going while providing a clear path to repair, instead of ignoring the fault or attempting simple power resets which don’t fix the underlying issue and can lead to repeat failures.