If a freight car has a defect making movement unsafe, what must be done?

When a freight car is identified as having a defect that compromises safe movement, the most responsible and appropriate action is to correct the defect or remove the car from service by setting it out. Safety is paramount in railway operations, and any defect can lead to catastrophic failures, jeopardizing not only the cargo but also crew members, the train, and the rail infrastructure.

Addressing or rectifying the defect ensures that the railcar can be safely used after repairs, or by setting it out, it effectively removes any risk associated with its continued operation. This decision aligns with standard railway safety practices and regulations that prioritize safe operations and the integrity of the rail network.

The other options do not address the critical need for safety; for instance, continuing to use a defective car could lead to accidents, notifying passengers is irrelevant since the defect pertains to freight operations, and requesting a delayed inspection does not solve the immediate issue of safety concerning the compromised freight car. Therefore, the correct approach is to either correct the defect or remove the car from further operations altogether.