What action is taken after checking if holes are properly enlarged?

After confirming that the holes are properly enlarged, the appropriate action is to carry out deburring. This process involves removing any sharp edges or burrs that may have formed around the holes during the drilling or enlargement process. Deburring is crucial to ensuring the integrity and safety of the assembly, as sharp edges can cause damage to other components, lead to misalignment, or create stress concentrations within the material.

By thoroughly deburring the holes, you ensure that they are smooth and fit together properly with associated parts, which is essential for achieving a reliable and high-quality assembly. This step is critical not just for functionality but also for safety in aerospace applications, where even minor imperfections can lead to significant problems.