A process of removing deposits from through-holes in a component, such as metallic bond coat and ceramic materials from cooling holes in an air-cooled gas turbine engine. The process is particularly effective in removing a TBC material deposited in a cooling hole of a component as a result of depositing...http://www.google.com/patents/US20030165621?utm_source=gb-gplus-sharePatent US20030165621 - Process of removing a coating deposit from a through-hole in a component and component processed thereby