AN UNINTENTIONAL ROOF FALL OCCURRED AT THE MILLENNIUM PORTAL ON THE 5N LONGWALL HEADGATE ENTRY #2 BETWEEN CROSSCUT 47 LEFT AT 3736N AND CROSSCUT 48 RIGHT AT 3768N. FALL WAS APPROX. 25' LONG X 18' WIDE X 8-10' THICK. FALL DID NOT AFFECT VENTILATION OR PASSAGE OF MEN. THE FALL WILL NOT BE CLEANED UP. FALL #22U.