AMP - Aviation Maintenance Technician Powerplant Practice Exam

What is a common type of inspection for aircraft engines?

1. Visual inspection only

2. 100-hour inspection

3. Pre-flight inspection

4. Post-flight inspection

The correct answer is: 100-hour inspection

A 100-hour inspection is specifically designed for aircraft that are used for hire or operating under flight rules requiring inspections at more frequent intervals. This type of inspection covers a broad range of checks and assessments aimed at ensuring the safety and airworthiness of the aircraft engines, as well as other systems. During a 100-hour inspection, technicians perform detailed examinations, including oil changes, visual inspections for wear, and functional checks of engine components. This is crucial since the engine is a complex system that needs regular maintenance to prevent failures during operation. While visual inspection, pre-flight inspection, and post-flight inspection are all important components of aircraft maintenance, they do not provide the comprehensive analysis that a 100-hour inspection entails. Visual inspections can be part of many different maintenance checks, while pre-flight and post-flight inspections are usually shorter and focus on immediate safety concerns rather than thorough engine evaluation. Thus, the 100-hour inspection stands out as a standard inspection type that emphasizes the ongoing maintenance necessary for aircraft engines specifically.