[embed]https://youtu.be/QFvfv1m4J44[/embed]
Aircraft Availability explained by Mark Gingrass. The airfare uses metrics such as Aircraft Availability to measure how ready the Air Force is to fly.
I am new to most of these terms so please correct me in the comments if I am wrong. I plan to revisit this once I gain a better understanding. This video should lead you in the right direction though.