As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SUPPLEMENTAL INFORMATION: FLOOR SUPPORT BROKEN AT STA.540 BL.0-BL.20L. / REMOVED DAMAGED CABIN FLOOR STRUCTURE AT BS 540 LBL 2 -LBL 22 PER SRM 51-40-02. INSTALLED NEW CABIN FLOOR STRUCTURE AT BS 540 LBL 2-LBL 22 PER SRM 51-40-02. DRILLED HOLES FOR FLOOR PANEL PER SRM 51-40-05. SEE NR# G643484 FOR WORK DONE.