If a train has a defective truck, what should the crew do?

In the event that a train has a defective truck, the proper protocol is to notify and stop the train immediately. This action is essential for ensuring the safety of both the train crew and passengers, as well as the integrity of the rail infrastructure. A defective truck can lead to severe issues such as derailments or further mechanical failures, which pose significant hazards. Stopping the train allows crew members to assess the situation promptly, potentially call for maintenance support, and take corrective measures.

The protocol emphasizes immediate response to any indications of defects, prioritizing safety over continued operation. Ensuring that the train is halted allows for proper evaluation and prevents further risks that could arise from attempting to operate with known mechanical issues.