A SECTION OF THE ROOF IN FRONT OF THE SHIELDS ON THE TAILGATE END OF THE LONGWALL FELL AND PREVENTED SAFE TRAVEL OFF THE TAILGATE SIDE OF THE LONGWALL FACE. THE ALTERNATE ESCAPEWAY DOES NOT GO OUT THE TAILGATE. THE FALL DID NOT RESTRICT AIR VELOCITY ON THE LONGWALL FACE. THE TAILGATE WAS TRAVELABLE WITHIN 24 HOURS. 8'HIGH X 18'WIDE X 10'LONG.