Final answer:
When a wheel fails the coining gauge inspection, it must be removed from service and replaced. Using a failed wheel can lead to accidents or damage. Documentation and further analysis might be required following the procedures of the respective company or regulatory body.
Step-by-step explanation:
If a wheel fails the coining gauge inspection, it indicates that the wheel does not meet certain specified dimensions or tolerances and is potentially unsafe for use. The appropriate course of action is to remove the wheel from service immediately and replace it with a wheel that passes the inspection. Continuing to use a wheel that has failed the coining gauge inspection can lead to wheel failure, which may cause accidents or damage to the vehicle. Depending on the specific policies and procedures of the company or regulatory body involved, the failed wheel may need to be documented, reported, and possibly sent for further analysis to understand the cause of failure.