Asset Repair and History

Asset Repair and History

I have issues where alot of our assets go out for repairs.  I have the need to track RMA#, date sent, date returned and reason for repair and what was fixed during repair.  I need the history of this as well.... i use the custom entries to add the information, but it doesn't keep any history when it has to go back out.  

Any help would be GREAT!! 

Thanks