Several Lockheed Electras have lost props, sometimes with considerable damage.
I know of four incidents, none of which caused injury to the occupants
There was a P-3 (A9-754) that ditched which had full power applied at the time. All four props separated and moved to starboard, the #2 entering the fuselage and killing one of the crew, damage also caused to the starboard outer wing leading edge, aileron and flap.