2 EE's were Roof bolting on the 5 west ramp. They proceeded to install a bolt in the area to the right of 10 previously installed bolts. Using a jackleg drill they started to collar a hole noticing the rock looked suspect. They started to move when a slab fell striking them with debris. Fall was arrested by fall protection. Both men sustained mutiple injuries.
2 EE's were Roof bolting on the 5 west ramp. They proceeded to install a bolt in the area to the right of 10 previously installed bolts. Using a jackleg drill they started to collar a hole noticing the rock looked suspect. They started to move when a slab fell striking them with debris. Fall was arrested by fall protection. Both men sustained mutiple injuries.
EE AND COWORKER WERE IN 5 WEST TO 6 HAND SCALING ROOF. THEY WERE APPROXIMATELY 60' IN THE AIR NEAR THE ROOF. THEY HAD SOUNDED THE ROOF PREVIOUSLY AND IT SOUNDED SOLID. EE WAS REACHING TO SCALE A ROCK ABOUT 4' FROM BASKET WHEN THE ROCK ABOVE HIM FELL. FOUR ROCKS FELL, SOME STRIKING HIM, RANGING FROM 100 TO 500 LBS. COWORKER WAS NOT HIT BY ANY ROCK.
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