THE MIDNIGHT SHIFT HAD MOVED THE BELT TAIL PIECEUP THREE BLOCKS AND EE WAS WORKING IN THE AREA MOST OF THE TIME WHEN WITHOUT WARNING OR ANY THATANYONE OBSERVED THE ROOF GIVE WAY. THE FALL AREA WAS SUPPORTED WITH 6 FT TENSION REBAR. THE FALL MEASURED 30 FT LONG, 35 FT WIDE INTO CROSSCUT AND 9 FT HIGH.