If an air suspension spring is found to be defective, what must be done with the train?

When an air suspension spring is identified as defective, it is critical to prioritize safety and operational integrity. Removing the train from service is necessary because the air suspension system plays a crucial role in maintaining the balance, stability, and overall performance of the train. A malfunctioning air suspension spring can lead to decreased ride quality, potential damage to the train itself, or even pose a safety risk to passengers and crew.

Continued operation of the train, even with caution, can exacerbate existing issues related to the defect, increasing the likelihood of failure and subsequent accidents. Attempting to repair the spring while the train is in service could compromise both the effectiveness of the repair and the safety of the train's operation. Furthermore, conducting further inspections without first addressing the defective component may result in overlooking immediate safety hazards that could arise from operating the train in its current condition.

Thus, the correct action upon identifying a defective air suspension spring is to remove the train from service until it can be properly assessed and repaired, ensuring the safety and reliability of train operations.