Aircraft mechanics and service technicians are professionals who carry out aircraft maintenance. They are entrusted with the inspection, repair and supervision of aircraft and aircraft systems. They are expected to have a good understanding of hydraulics, pneumatics, weight and balance, electricity, basic physics, ground operations of aircraft, cleaning and corrosion control, etc. Knowledge of rules and regulations, navigation and warning systems, position and warning systems, fire protection systems, cabin atmosphere control systems, etc. are also vital to the work of an aircraft mechanic and service technician. This textbook provides comprehensive insights into the duties and responsibilities of aircraft mechanics and service technicians. It aims to serve also as a career guide to students interested to work in these domains. Those in search of knowledge to broaden their understanding of this field will find this book immensely helpful.