A roof fall occurred ont he 1st right panel off ""R"" section mains approx. 70' inby S.S. #4465 in the No.6 intake entry. the fall measured approx. 90'l x 5'-7'Thick x 18'w. the fall occurred in an area of known bad top and supplemental roof supports (10' cable bolts & cribs) had been installed int he area prior to the fall. the fall is approx. 3000' from the active 002-0 section.