Bava,
The two parameters that would bring you closest would be the PIREP and MAREP rates (PIlot REPort and MAintenance REPort). From those, you need to manually deduce the routine reports like "remaining fuel after r/u" etc, which are not driven by actual faults.
Another way: I suppose Airman will give the data you are looking for very easily... (including nuissance messages, though
).
In terms of sharing data, the airlines and Airbus have started some programmes. Have a look at:
http://www.airbus.com/store/mm_repos...t_cost_pdf.pdf
IŽll have a look tomorrow at our A320s...
Cheers,
J.V.