As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CABIN FLOOR PANEL HAT STIFFENER CREASED ON AFT SIDE AND PANEL HAS 1 INCH CRACK IN CENTER AREA STA 826 TO STA 928 RBL 44 TO RBL 54. REMOVED DAMAGED HAT CHANNEL, INSTALLED A REPLACEMENT CHANNEL IAW MD80 SRM 51-10-4 PG 1 & 51-30-2 PG 1. REPAIRED CRACK IAW MD80 SRM 53-01 PG 12 FIG 2.