As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SAW - DURING CPCP4 INSPECTION, FOUND CORROSION ON PASSENGER ENTRY SILL AND THE SERVICE DOOR SILL PLATES. THE SILLS WERE REMOVED AND REPLACED IAW ATR72 SRM 51-25-01 AND 51-25-02. THE AIRCRAFT WAS RETURNED TO SERVICE. REF SIMA200124205. (M)