▁involved ▁in ▁the ▁explos ion ▁have ▁launched ▁legal ▁action ▁in ▁connection ▁to ▁the ▁accident . ▁ ▁F alk ▁Corporation ▁ ▁The ▁F alk ▁Corporation ▁manufact ures ▁large ▁industrial ▁g ears , ▁cou pl ings , ▁ch ains , ▁bear ings ▁and ▁other ▁industrial ▁components ▁and ▁equipment . ▁Loc ated ▁in ▁the ▁Men om one e ▁River ▁Valley ▁in ▁Mil w au kee , ▁Wisconsin , ▁it ▁is ▁owned ▁by ▁R ex n ord . ▁The ▁complex ▁is ▁more ▁than ▁, ▁and ▁has ▁ ▁of ▁buildings . ▁ 6 0 0 ▁people ▁were ▁inside ▁the ▁complex ▁at ▁the ▁time ▁of ▁the ▁explos ion . ▁The ▁building ▁that ▁expl oded ▁was ▁located ▁in ▁one ▁corner ▁of ▁the ▁complex . ▁The ▁building ▁that ▁hous ed ▁the ▁prop ane ▁t anks ▁was ▁two ▁separate ▁structures ▁joined ▁together . ▁One ▁of ▁the ▁buildings ▁was ▁used ▁as ▁a ▁w are house ▁for ▁storing ▁components ▁used ▁in ▁the ▁manufact uring ▁process , ▁and ▁was ▁called ▁the ▁Anne x . ▁The ▁other ▁building , ▁called ▁the ▁ 2 - 2 ▁building , ▁was ▁a ▁maintenance ▁facility . ▁The ▁two ▁buildings ▁between ▁them ▁hous ed ▁six ▁prop ane ▁t anks ▁and ▁covered ▁. ▁ ▁Pre vious ▁dis aster s ▁involving ▁the ▁F alk ▁Corporation ▁The ▁company ▁was ▁founded ▁in ▁ 1 8 5 6 ▁as ▁a ▁bre wer y ▁and ▁the ▁original ▁plant ▁was ▁destroyed ▁by ▁fire . ▁Three ▁years ▁later , ▁the ▁replacement ▁bre w ▁house , ▁gra in ▁elev ator , ▁m alt ▁house ▁and ▁re fr iger ator ▁building