As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING MAINTENANCE BASE VISIT INSPECTION FOUND THE CENTER SERVICE DOOR SILL TO HAVE CORROSION AROUND NUT PLATE BETWEEN FRAMES 21-22 ON PREVIOUS REPAIR. THE AIRCRAFT WAS REMOVED FROM SERVICE. REMOVED AND REPLACED CENTER SILL IAW EMBRAER STRUCTURAL REPAIR MANUAL 51-40-02. AIRCRAFT WAS RETURNED TO SERVICE.