A ROOF FALL OCCURRED AT APPROXIMATELY 6:00 AM IN THE NO.3 BELT/TRACK ENTRY AT SURVEY STATION NO.44. THE FALL MEASURED APPROXIMATELY 20'L X 20'W X 3' THICK. THE PRESHIFT EXAMINER FOR THE ONCOMI NG SHIFT OBSERVED THE ROOF WORKING IN THE AREA AND WENT TO A MINE PHONE TO CALL OUTSIDE ABOUT IT. WHEN HE RETURNED TO THE AREA THE ROOF HAD FALLEN. FALL WAS CLEANED UP & ADDITIONAL SUPPORTS A