To prevent fuel starvation due to ice in the fuel system, which item is mandatory?

To prevent fuel starvation due to ice in the fuel system, which item is mandatory?

• A. Fuel Heater
• B. Fuel System Icing Inhibitor (MIL-1-27686E)
• C. Ice Removal Service
• D. Fuel Filter Frost-Prevention

Answer: (B)

Ice forming in fuel lines from water in the fuel can block passages and cause fuel starvation, especially at low temperatures. The mandatory preventive measure is a fuel system icing inhibitor, as specified by MIL-1-27686E. This additive lowers the freezing point of the fuel-water mix and helps keep ice crystals from forming or clogging filters and lines, ensuring a steady fuel supply. While a fuel heater can mitigate icing in some situations, the standard requirement is the FSII. The other items are not the mandated means for preventing ice-related fuel starvation.

Ice forming in fuel lines from water in the fuel can block passages and cause fuel starvation, especially at low temperatures. The mandatory preventive measure is a fuel system icing inhibitor, as specified by MIL-1-27686E. This additive lowers the freezing point of the fuel-water mix and helps keep ice crystals from forming or clogging filters and lines, ensuring a steady fuel supply. While a fuel heater can mitigate icing in some situations, the standard requirement is the FSII. The other items are not the mandated means for preventing ice-related fuel starvation.