As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN CENTER WING FLOOR SUPPORT BREAK CRACKED @ LBL 1 STA 540 MKD DOT<[01] REMOVED AND REPLACED FLOOR SUPPORT AT MAIN CABIN CENTER WING @ LBL 1STA 540 AS-PER SRM 51-40-02-0G-0;[02] VERIFIED STEP 1.;[03] IN ADDITION TO STEP 1: REMOVED AND REPLACED FLOOR SUPPORT AT MAIN CABIN CENTER WING @ LBL 1; STA 540 AS PER SRM 51-40-02-0G-0 AND BOEING DWG 143A0060 SHT 121.;[04] VERIFIED STEP 3