What was found
SUPPLEMENTAL INFORMATION: MAIN CABIN CENTER WING BOX UNDER FLOOR PANEL CENTER AISLE FLOOR SUPPORT BREAK CRACKED @ STA 540 LBL 1 ; / [01] REMOVED MAIN CABIN FLOOR SUPPORT BREAK AT STA 540 BETWEEN BL 0 AND LBL 24 REF B737-700 SRM 51-40-02-0G-0.; [02] LOCATED AND DRILLED NEW FLOOR SUPPORT BREAK AT MAIN CABIN STA 540 BETWEEN BL 0 AND LBL 24 REF B737-700 SRM 51-40-05-0G-0 AND DWG# 143A0060.; [03] VERIFIED 1-2. OK TO INSTALL NEW SUPPORT; [04] INSTALLED NEW FLOOR SUPPORT BREAK AT MAIN CABIN STA 540 BETWEEN BL 0 AND LBL 24 REF B737-700 SRM 51-40-02-0G-0 AND DWG# 143A0060.; [05] VERIFIED STEP 4