fedex wanted to install ice sensors on the airplane so as to inform the pilots that they have entered icinging conditions .By the time the little light comes on its pretty much too late .When i enter ice in the van i know i dont need a little light to tell me that i am in it , what i need is an airplane that can get rid off it. The cost of such a design would be around 10.000 $ i was told ( little tank in the pod with fluid, then the design on the leading edge that spreds the fluid , sorry forgot the exact name ) .I knew the pilot , i have flown that run , and no little light would have saved her , but a design that could have saved her and many others is just too expensive ...... Not sure how many people have died hauling boxes but this one hit close to home .and the winter has just begun ....