What is a common cause of fuel contamination?

Fuel contamination is often a result of environmental exposure and improper storage. When fuel is not stored correctly, it can come into contact with moisture, dirt, or other contaminants that can significantly degrade its quality. For instance, if fuel tanks are left open or are not sealed properly, rainwater or debris can infiltrate the fuel supply. Additionally, prolonged exposure to certain environmental conditions, such as extreme temperatures, can cause chemical reactions within the fuel, leading to a degraded state better suited for contamination.

Moreover, storage facilities that lack proper maintenance might encourage the development of bacteria or fungi, which can also pollute the fuel. Thus, it is crucial to ensure that fuel is stored in clean, dry, and well-maintained environments to minimize the risk of contamination, while also employing proper handling practices to maintain fuel integrity before it is used in aircraft operations.