What was found
DURING IMBV INSPECTION, SERVICE DOOR CENTER SILL WAS FOUND TO BE CORRODED. REMOVED THE CORRODED CENTER SILL AND INSTALLED SERVICEABLE SILL IAW EMB SRM, SRM 145/1142 REV 33, CHAPTERS 51-140-02, 03, 51-40-06 AND EMB CPM, CPM 145/1132 REV 13, CHAPTER 51-21-04. RETURNED AIRCRAFT TO SERVICE. (M)