What was found
ABI - DURING A HMBV INSPECTION, THE CARGO DOOR CUTOUT LOWER SILL WAS FOUND TO BE CORRODED. REMOVED AND REPLACED LOWER SILL, IAW EMB SRM, SRM 1454/1142 REV 33, CHAPTER 51-40-02, 03, 51-40-06, 51-20-01 AND EMB CPM, (CPM-145/1132 REV 13) CHAPTERS 51-21-05, 51-14-02, 51-20-03 AND 51-21-03, RETURNED AIRCRAFT TO SERVICE. (M)