As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PASSENGER CABIN FWD GALLEY FLOOR STRUCTURE INTERCOSTAL BETWEEN STA 310 & 324 RBL 42 AFT END UPPER SURFACE IS CORRODED. BLENDED CORROSION IAW SRM 53-00-51 ORG THICKNESS .120 REMAINS .078 LOSS OF .042. REMOVED INTERCOSTAL AND INSTALLED NEW INTERCOSTAL & SHIM PER BOEING DWG141 N5160 & SRM 53-00-51.