Missed automatic checks?

[knobbygb]

I just had something happen that I've never seen before.

An aircraft was grounded for flying with an expired C-Check despite me having them automatically scheduled.  I've had warnings before for missed B-checks (usually when another manual check was done at the same time) but not this.  So now I have a 19-point hit on my CI for doing nothing wrong.

So...  how are automatic C and D checks executed?  Does/should the aircraft always go on the exact date?  What if it's already in, say, a B-check?  Doesn't the system take this into account?  How long before it tries again to do the C-Check?

And how much leeway is there on ramp checks?  How overdue does it have to be before you get caught?  I thought it was several weeks (with a random factor thrown in too).

This one obviously slipped-through, but I'm just interested if anyone else has had this.

[JumboShrimp]

Was your cash negative by any chance?

[knobbygb]

Nah, I checked the obvious stuff. Everything's in good order and I have over a billion cash!