Mega. The post says 146, but I assume from your comment that it should be RJ. I flew the original 146 for about 1900 hours (yes, 20 years ago!) and the only problem we seemed to get was throttle freeze in the cruise. Water would get into the pylon, from there to the engine, and it stuck at cruise power. During descent, when the asymmetry got too much, just shut it down. The joy of four engines. (Don't anybody start on "hairdryers")