FAA sets special fuel tank conditions for Boeing 777-9

The Federal Aviation Authority (FAA) has issued several special conditions on the upcoming Boeing 777-9, aimed to demonstrate the aircraft’s composite fuel tanks durability. Special conditions have been issued in order for Boeing to demonstrate the 777-9’s composite fuel tanks can withstand tire debris impact. As part of the FAA’s regulations, it’s said that “Fuel-tank surfaces of typical transport airplanes have thick aluminium construction in the tire-debris impact areas that is tolerant to tire debris larger than that defined in these special conditions. Consideration of leaks caused by larger tire fragments is needed to ensure that an adequate level of