What is the purpose of a fuel filter?

The purpose of a fuel filter is to remove contaminants from the fuel. Fuel systems in aircraft are critical for the proper operation of the engine, and contaminants such as dirt, rust, and water can be detrimental. If these impurities enter the engine, they can cause wear, corrosion, and ultimately, engine failure. The fuel filter captures these particles before they reach the engine, ensuring that only clean fuel is supplied for combustion. This is essential not only for the longevity of the engine but also for the safety and reliability of the aircraft operation. Proper filtration is a fundamental aspect of fuel management in aviation maintenance, directly impacting performance and efficiency.