The prices for maintenance that "FOUNDINTHEMIND" quoted is most likely just for the minimum inspection cost for two phases. You need to understand on our King Air E90 we NEVER get out even close to the minimum inspection cost. We fly around 400 hours per year so we actually have to do a phase every 200 hours. (If you do a single phase at a time it is more expensive per phase than if you did two phases at a time.) I will tell you this I have never taken it in for maintenance and the bill been less that 27k.