As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SHIP 3307 DEPT 206 FOUND DAMAGED BURNT NTF AT L4 DOOR. CORRECTIVE ACTION: REMOVED 4L HEATED FLOOR PANEL 39DS PER A330 AMM 25-27. CORROSION FOUND AROUND SEAT TRACK AFT OF LAV. CLEANED DEBRIS AROUND SEAT TRACK - NTF. PERFORMED BITE TEST OF DOOR 4L HEATING SYS CKS GOOD. (8401189)