THIS OPERATOR EXPERIENCED A REPORTABLE ROOF FALL ON THE TAILGATE OF THE 3-LEFT LONGWALL STARTING AT 41+90 AND EXTENDING OUTBY TO 41+25. THE FALL WAS 65 FT LONG X 10 FT HIGH. THE FALL AFFECTED THE PASSAGE OF PEOPLE & QUANTITY OF VENTILATION. (ACTION TO PREVENT RE-OCCURRANCE - THIS OPERATOR IS ADDING ADDITIONAL ROOF SUPPORT IN THE AREA ADJACENT TO THE FALL AREA & OUTBY IN THE ENTRY.)