Well, you can read about a number of problems people have had and their corrective actions in discussion threads here. Can you be more specific as to what you are looking for? What is the nonconformance you are looking for a corrective action for?
Well, in general, the people here on The Cove are not any more likely to give you the answers you need than you are if you were to just make them up. You'll need to know what specific issues need to be addressed. Then, you need to do a thorough Root Cause Analysis to find the real problems. There are several tools available to help you with that (5 Whys, Fishbone, etc.). Anything we give you would just be guesses from afar.