THE INCIDENT OCCURRED WHEN AN O&K DIRT SHOVEL WAS LOADING A LARGE ROCK INTO THE BED OF A 190 TON CAT HAUL TRUCK. THE SHOVEL OPERATOR PICKED THE ROCK UP WITH THE SHOVEL BUCKET & PLACED THE BUCK ET OVER THE TRUCK BED. THE OPERATOR THEN CURLED THE BUCKET & THE ROCK FELL ONTO THE DUCKBILL OF THE HAUL TRUCK. THE TRUCK OPERATOR'S NECK BECAME SORE LATER, DIAGNOSED AS NECK STRAIN.