Location: 672 51st St *E-278 1st due* B-40 gave the 10-75 Natural gas explosion in the basement B-40 No fire at this time E-201,228,282,241 L-114,148,109(Fast) B-40,48 R-2 Sq-1 D-8 Rac-5 E-250 w/ 2nd piece HM-1 HMB