As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B INSPECTION FOUND THE LEFT OUTBOARD FLOOR SILL CORRODED BETWEEN FRAMES 19-22. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED THE LEFT OUTBOARD FLOOR SILL, BETWEEN FRAME 19-20 IAW EMB SRM 51-40-02 NR 1 SILL. THE AIRCRAFT WAS RETURNED TO SERVICE.