THE FIRE BOSS WAS MAKING HIS EXAMINATION WHEN HE DISCOVERED MORE AIR THAN USUAL ON THE BELT LINEOF THE OLD SECTION AND WHEN HE INVESTIGATED HE FOUND A ROOF FALL. THE FALL WAS 16 FT WIDE 16 FT LONG AND 7-8 FT HIGH. THE AREA WAS SUPPORTED WITH 6 FT TENSION REBAR.