WHILE TIMING THE ENGINE ON MY TRUCK THE FLEX FAN BROKE APART AND HIT ME IN THE HEAD JUST MISSING MY EYE. THE BLADE CUT A PRETTY GOOD CHUNK OUT OF MY FOREHEAD. I AM LUCKY TO BE ALIVE. I BELIEVE THE NTHSA SHOULD DO A FULL RECALL ON THIS ITEM. I WAS SUPRISED TO FIND OUT ABOUT ALL OF THE PREVIOUS INCIDENTS REPORTED TO THE NHTSA ON THIS ITEM WITHOUT RESULTING IN A RECALL.