What issue are gas turbine engine fuel systems particularly susceptible to?

Gas turbine engine fuel systems are particularly susceptible to the formation of ice in the fuel filters due to several factors. Jet fuel can have a portion of water in it, which may not be visible during regular checks. Under certain conditions, such as low temperatures, this water can freeze and form ice. When ice forms, it can clog fuel filters, restrict flow, and lead to engine performance issues by depriving the engine of the necessary fuel.

The risk of icing is particularly prominent at higher altitudes where temperatures can drop significantly. This becomes critical in the operation of gas turbine engines, as they rely on a constant, unobstructed flow of fuel to maintain performance. Effective fuel system design and maintenance practices aim to mitigate these risks, including the use of anti-icing additives in the fuel and proper drainage of water from fuel tanks. Recognizing and addressing the potential for ice formation is key to maintaining reliable operation of gas turbine engines.