I'm surprised you weren't aware of what dispatch reliability is. A google search reveals it's definition and central importance in operating and marketing airliners. In the military, I would guess schedules and operating economics would be of relatively little importance in comparison to the airline industry, so it wouldn't be much of a concern. An easily understandable definition of what dispatch reliability is is given in the article for those not aware. Nonetheless I have added a suitable reference http://www.avbuyer.com/articles/detail.asp?Id=2363 explaining in more detail dispatch reliability and related terms (the 737 article is not suitable as a reference , that was given just as an example of the use of the term by Boeing). The wholesale reverts were intentional, not sure what you mean there.