What is a primary indicator for repairing floors and center rails?

In container inspection, the presence of light leaks serves as a primary indicator for the need to repair floors and center rails. Light leaking into a container signifies gaps or openings that could compromise the container's integrity, indicating that the flooring or the center rail might be damaged or deteriorating. These leaks can allow moisture or contaminants to enter the container, leading to further damage of cargo or even the container structure itself.

While discoloration, minor cracks, and surface scratches can all be signs of wear and tear, they do not necessarily indicate an immediate need for repair in the same way that light leaks do. Discoloration might suggest exposure to elements but does not typically compromise structural integrity. Minor cracks may not be severe enough to warrant immediate repair unless they have more significant implications, and surface scratches, while indicative of minor wear, often pose no threat to the overall functionality of the container. Therefore, detecting light leaks is a strong indication that repairs are necessary to ensure the container remains functional and safe for transporting goods.