A ROOF FALL OCCURRED IN THE 7TH SOUTHEAST MAINS RETURN AIR COURSE FOR THE 004-0 MMU AT SPAD NO. 3971. THE ROOF FALL STARTS IN THE 7 RIGHT CROSSCUT AND CROSSES THROUGH THE NO. 8 ENTRY AND STOPPED 25' INTO THE NO. 8 CROSSCUT. THE FALL IS APPOXIMATELY 6'-8' THICK, 19' WIDE, AND 70' LONG.