What action should be taken if the Out of Service indication appears?

If the "Out of Service" indication appears, the appropriate action is to immediately remove the train from revenue service as planned. This protocol is essential for ensuring the safety of both passengers and crew. An "Out of Service" status typically indicates that there is a significant issue or malfunction that prevents safe operation. By taking this action, operational risks are minimized, and it allows for the necessary inspections and repairs to be conducted on the train before it can resume service.

It is crucial to prioritize safety in rail operations. While notifying passengers and contacting maintenance might also be part of the procedures following the decision to take the train out of service, the initial and most important step is to ensure that the train is no longer in operation to prevent potential accidents or further complications related to the malfunction.