The training manual is designed as a self study text for use by Navy and Naval Reserve personnel preparing to meet the professional qualifications for advancement to Petty Officer Third Class and Petty Officer Second Class in the rating of Aviation Support Equipment (ASE) Technician E (Electrical). The first chapter provides information on the enlisted rating structure, the ASE rating, and requirements and procedures for advancement and includes references that will help in advancement and in the performance of ASE duties. Chapters 2 through 16 consist of materials on: maintenance forms and records; publications; elementary physics; tools and materials; drawings, diagrams, and identification markings; ground support equipment; servicing and maintenance; test equipment; automotive electrical systems; automotive accessories; power generating equipment; power generating systems; gas turbine engines; air conditioning systems; and corrosion prevention and control. The document is illustrated throughout with numerous photographs and diagrams. Two appendixes cover electrical formulas and electrical and electronic symbols and are followed by a subject index. (Author/BP)