So if the entire fleet is flying and not one is in maintenance or not one can be an operational spare then it's not a fleet?

My bet, and I'm no Newk, is that the word fleet was added to prevent the 717s from being acquired and put into storage but that acquisition being enough to allow the CRJ-900s to be ordered and flown on revenue service without the 717s. The word maintenance was in there because that would allow ## CR9s to enter into service even if the required number of 717s had not yet hit the line because they were being refurbished in maintenance.

That's my guess. But let's say it is a violation, 717s in maintenance and not yet flying therefore means no CR9s can be flying but let's say they do anyways, what are we going to do about it? I mean what do we get for that when we find out the 717s are good to go come Nov 1 and in the meantime the company is flying 160 super premium jumbo 76-seater RJs?

What's your definition of constructive engagement?