While performing Before Operations PMCS, you notice the front right tire appears slightly underinflated. What is the proper action?

You need to make sure that the front right tire is properly inflated.

Explanation:

Its important to understand at first that what exactly the PMCS means. It actually means the preventive military checks and services. Now the tire is undeinflated. Hence we need to make sure that the tire is properly inflated, or else the tire is certainly going to puncture sooner or later. And this will ensure that we are fully safe.