This book describes all necessary ingredients needed to start of optimize an aircraft maintenance organization. It will discuss: the introduction to aircraft maintenance, the organization breakdown, the maintenance program based upon the updated MSG-3 analysis, the planning of aircraft maintenance, the operation center, the maintenance capacity and capability, the material management, the maintenance costs, the reliability program, the legislation of the EASA and foreign civil aviation authorities, the highlights of the EASA Part-145. This book is therefore of interest to students and those who like to know more about the organization of aircraft maintenance.