The book illustrates many examples of how to use the right economic theory and work-scopes to save many millions of dollars on airplane and engine maintenance. The airplane operating manuals do not specify how airlines can obtain economic performance of airplanes. The book highlights many airplane operating problems caused by simple problems like vibration and how you should deal with them effectively. It also recommends the cautious steps one should take when outsourcing your airplane maintenance to a third party. However, you cannot outsource the good standard of care and safety of the airplanes that have to be shouldered by the airline E&M organization. Management of spare parts is a lucrative endeavor that can save airlines many millions if done properly. Managing an E&M organization requires constant upgrading and improvement to keep abreast with the latest IT trends and management ideas. Continuous staff training is a pre-requisite to keeping the organization productive and efficient.