What was found
DURING A SCHEDULE INSPECTION THE MAIN PASSENGER DOOR THRESHOLD BRACKETS WERE FOUND TO BE CORRODED IN SEVERAL AREAS. MAINTENANCE REMOVED AND REPLACED THE THRESHOLD BRACKETS IAW EMB SRM 51-40/02, 51-30-02 AND CPM 51-21-04,05 AND 06. THE REPAIR WAS FOUND TO SATISFACTORY, THE AIRCRAFT WILL BE RELEASED UPON COMPLETION OF INSPECTION.