If a blade can off and it did not damage any part of the hub then the only thing it could be is human error. the nut was not tight and the lock ring was not set when the prop was rebuilt. what the rebuilder says he does not know why only one of three blades came off and yet the threads on the shaft are ok?
"FULL TILT II" 2011 BENETEAU FIRST 30
"FULL TILT" SOVEREL 33
"GOLD RUSH" PRINDLE 16