Aviation Powerplant Knowledge Base | Learn Aircraft Engine Systems

The Powerplant section provides the core knowledge required for those pursuing Powerplant Mechanic certification. It introduces the fundamental principles, key systems, and essential maintenance procedures associated with the powerplant rating. This section supports both students in structured training programs and individuals engaged in independent study.

Within this section, you’ll explore the major systems and components that supply fuel, air, and ignition to support efficient aircraft engine combustion. Because aircraft designs vary widely, representative systems are used to explain concepts clearly and avoid unnecessary repetition.

The material is presented from a general perspective to establish a solid foundation in theory and application. For detailed specifications, procedures, or adjustments, always refer to the manufacturer’s manuals, official aviation regulations, or other approved technical publications. This section is not intended to replace or override official instructions but to serve as a comprehensive guide to powerplant fundamentals.

Topics Covered

• Aircraft Engines
• Engine Fuel and Fuel Metering Systems
• Induction and Exhaust Systems
• Engine Ignition and Electrical Systems
• Engine Starting System
• Lubrication and Cooling Systems
• Propellers
• Engine Removal and Replacement
• Engine Fire Protection Systems
• Engine Maintenance and Operation
• Light-Sport Aircraft Engines

Together, these subjects form the foundation of Powerplant Maintenance Training, preparing Aviation Maintenance Technicians (AMTs) to inspect, maintain, and troubleshoot aircraft engine systems with confidence and technical precision.