DCN E1200723 POST FABRICATION CHANGES PER CONCLUSIONS (SEE FILES ATTACHED TO THE DCC ENTRY FOR LIGO-D1101851-V1) OF AN INITIAL BSC2 FIT CHECK OF TEMPLATE PIECES, SIMULATING INTERFACES BETWEEN BSC2 AND ASSEMBLIES D1101851-V1-01,-02 FOLLOWING PARTS ARE REVISED FROM -V1 TO -V2 D1200815, BSC2 INTERIOR FLANGE FIT BLOCK, aLIGO TCS CO2P SM2 D1200816, LONG SIDE FIT CHECK TEMPLATE, aLIGO TCS CO2P SM2 D1200817, SHORT SIDE FIT CHECK TEMPLATE, aLIGO TCS CO2P SM2 D1200818, MIDSPAN FLOOR CLEARANCE FIT BLOCK, aLIGO TCS CO2P SM2