Slush - NOT
Fuel /ice slush? Think about this. At the point where the pump goes into cavitation, the fuel pressure at the pump inlet falls to near zero. And the near zero pressure will extend back through the pipe to the blockage. On the other side of the blockage the pressure will be one atmosphere, plus any head from elevation below wing fuel surface, plus the pressure added by the wing boost pump. That is a major pressure difference across the blockage of well over 30 lb/ in. Also the small area that is not blocked is carrying all the fuel flow. If the pipe is 95% blocked per the report mock up that caused cavitation, then the velocity as it passes the blockage is 20 times normal. Still think it was slush?