Discussion in detail and consider any airline, and think of three products, services, or operations that would be managed using process control by means of an X or R chart, and three that would likely be managed by p, c, or u charts?

Note that the Airlines provide a number of products and services to the general public that requires a high degree of consistency, quality, and reliability. Such products, services, and internal supporting operations require management using statistical process control services.

Note: please do not copy-paste please make sure you rephrase not just summaries if you will take an example from other people.