What is the recommended action to take if a metal shore starts to show signs of failure?

When a metal shore begins to show signs of failure, the most prudent action is to remove the load immediately. This approach is critical for ensuring the safety of personnel and preventing potential accidents or injuries that could arise from a collapse. A metal shore is a structural element used to support or stabilize a load, and any signs of failure—such as bends, creaks, rust, or fractures—indicate that it may no longer provide the necessary support.

Removing the load helps to alleviate stress on the shore and buy time for further assessment and repairs. This immediate response protects not only the integrity of the structure but also the safety of individuals working in the vicinity. Without prompt action to alleviate the load, there is an increased risk of catastrophic failure that could lead to serious consequences.

In this context, other options may involve assessing the situation or seeking guidance, but these do not prioritize the immediate safety needed when there's a risk of structural failure. Therefore, acting quickly by removing the load is essential.