As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED 4C INSPECTION, CORROSION WAS FOUND ON THE RT FWD FLOORBOARD SUPPORT SILL IN THE LAV MAINT. REMOVED AND REPLACED THE FLOOR BOARD SILL IAW SRM 51-40-02. ALL WORK WAS ACCOMPLISHED AND WILL BE REL. UPON COMPLETION OF THE 4C INSPECTION.