As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS IN BASE MAINTENANCE. DELAMINATED TOP LAYER PASSENGER CABIN FLOOR PANEL 252KG BETWEEN FRAME 47 AND FRAME 51, -Y1456 TO Y-953. REPLACED FLOOR PANEL WITH REPLACEMENT MATERIAL PER SRM 53-02-00-300-009 FIGURE 20109 AND IRM 9701 REVISION G.