4 NORTH RETURN AT 63+13(NEAR 5 RIGHT-4 NORTH LONGWALL TAILGATE RECOVERY AREA) ROOF FALL. INITIALLY MINED AUGUST 1999. FAILURE AT INTERSECTION AND PART OF ENTRY. AREA 100 FT LONG, 16 TO 17 FEET WIDE, APPROX 15 TO 20 FEET HIGH. DAMAGE TO EQUIPMENT ONLY.