With the amount of flying thet goes on at OBA, statistically I would say that is a very low incident rate. They have many, many aircraft each with a high daily utilisation. If you compare that to a flight school with one C152, which gets flown 8 hours a week I think the statistics will show OBA has a very low incident rate. (note: this is just my opinion, I don't know if the stats will support this or not).