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 231AF BETWEEN FRAME 15A AND FRAME 19, -Y450 TO Y450. REPLACED FLOOR PANEL WITH REPLACEMENT MATERIAL PER SRM 53-02-00-300-009 FIGURE 20109 AND IRM 9701 REVISION G.