considerable research going on since quite a while..
and there have been engine problems that were presumably traced to "ice crystals"...small & large jets...
see the Boeing AERO article below..
me, still not sure whether that phenomenon just seems to pop up nowadays, because we may fly a tad too close to some convective weather at altitude at times..for whatever ill-advised reasons..
AERO - Engine Power Loss in Ice Crystal Conditions
can't help the feeling that these things have always been around, but maybe in earlier times farther away from planes....( remember the microburst debates & training and what you have in the 70's and early 80's...well CBs have produced microbursts before humankind..'s just that not so many folks had tried to land or take-off during thunderstorms before..)
but maybe I'm all wrong and it can be all attributed to "climate change"
