AN UNINTENTIONAL ROOF FALL MEASURING ~50' LONG, 18' WIDE, UP TO 5' HIGH IN THE NO. 4 BELT ENTRY OF SW MAINS JUST OUTBY SPAD 3269. AREA DEVELOPED3/31/96 & WAS LOCATED ABOUT 5,800' FROM THE NEAR EST WORKING FACE. NO INJURIES, DISRUPTION IN VENTILATION OR PASSAGE OF MEN AFFECTED BY THE FALL.