This light aircraft crash avoidance system performs what previous such systems perform, but with much less system weight, much less cost and much less expenditure of electrical energy. A pipe connector is completely removed from between each direct vessel injection nozzle and each injection extension duct installed on an outer surface of the core barrel, which are opposite to each other. The spin Hall effect metal layer can be adjacent to the free magnetic layer or in direct contact with the free magnetic layer to allow a spin-polarized current generated via a spin Hall effect under the charge current to enter the free magnetic layer. Light-emitting diodes within the backlight structures may emit light that is coupled into the light guide plate.