Final answer:
An inspector should check the joint against applicable standards and, if not compliant due to the use of two fiber gaskets, report this and recommend correction to a single gasket for proper sealing and integrity of the joint.
Step-by-step explanation:
As an inspector encountering a flanged joint with two fiber gaskets, the correct course of action is to assess the compliance of this configuration with the applicable standards and specifications for the system being inspected. Typically, a flanged joint should only have one gasket to ensure proper sealing. Using two gaskets can compromise the integrity of the joint, leading to leakage or failure. It's important to check the manufacturer's guidelines and the engineering specifications to determine if the installation is correct. If it is found that the use of two gaskets is not per the standards, the inspector should report this and recommend that the flanged joint be corrected to only include one gasket to ensure safety and functionality of the system.