A rare occurrence to be sure, but not unknown. In fact a piece of ice fell through a Calgary roof a couple of years ago in the same neighborhood..
Oh, when ice does fall from an airliner, it usually originates from the sinks and water dispensers, NOT from the toilet. The public immediately assumes it is toilet waste water..
Also, some airlines no longer use blue water to identify toilet waste water.
Last edited by Kewbick; 27th Feb 2017 at 19:16.