FAA Powerplant Written Practice Test

During an inspection, a nick is found on a compressor blade. What is essential to consider next?

1. The age of the engine

2. The location of the damage

3. The color of the blade

4. The amount of wear elsewhere

The correct answer is: The location of the damage

When a nick is found on a compressor blade during an inspection, it is crucial to consider the location of the damage because it has a direct impact on the performance and integrity of the blade. The specific location of a nick can influence how the blade interacts with airflow and how it contributes to the overall efficiency of the engine. Certain areas of the blade, such as the leading edge or tip, may be more critical for maintaining aerodynamic properties, while damage in these areas can cause imbalances or further structural failure. Additionally, the location can determine whether the nick falls within acceptable tolerances set by the manufacturer, which may dictate whether repairs are necessary or if the blade should be replaced entirely. This assessment is vital for ensuring the safe operation of the engine and preventing possible malfunctions during flight. Other factors, such as the age of the engine or the amount of wear elsewhere, may be relevant to the broader condition of the engine but do not provide the immediate action necessary for addressing the specific issue of the nick on the compressor blade. The color of the blade is typically not an indicator of structural integrity, making it less relevant in this context.