What was found
MAIN CABIN CENTER SECTION FLOOR SUPPORT BREAK CRACKED @ LBL 1 STA 540 MKD DOT<[01] REMOVED AND REPLACED MAIN CABIN CENTER SECTION FLOOR SUPPORT BREAK @ LBL 1 STA 540 AS PER 51-40-02-0G-0.;[02] EDIT TO CORRECTIVE ACTION STEP1: REMOVED AND REPLACED MAIN CABIN CENTER SECTION FLOOR SUPPORT BREAK @ LBL 1 STA 540 AS PER SRM B737-800 51-40-02-0G-0.;[03] EDIT TO CORRECTIVE ACTION STEP1 AND 2: REMOVED AND REPLACED MAIN CABIN CENTER SECTION FLOOR SUPPORT BREAK @ LBL 1 STA 540 AS PER SRM B737-800 51-40-02-0G-0. DWG. NO 143A5240 PG 1;[04] FINAL INSPECTION; VERIFIED STEP #3.