As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A SCHEDULED INSPECTION THE LT SILL WAS FOUND CORRODED IN SEVERAL PLACES BETWEEN FR 19 AND 20. MAINTENANCE REMOVED AND REPLACED THE LEFT HAND SILL IAW EMB-135/145 SRM 51-40-02. THE REPAIR WAS SATISFACTORY AND THE AIRCRAFT WILL BE RELEASED UPON COMPLETION OF INSPECTION.