What was found
PASSENGER CABIN FLOOR STRUCTURE STA 1640 TO 1661 RBL 54. FLOOR SUPPORT BEAM CORRODED. REMOVED CORROSION IN PASSENGER CABIN FLOOR STRUCTURE STA 1640 - 1661 RBL 54, FLOOR SUPPORT BEAM, IAW SRM 51-10-02. VERIFIED MATERIAL LOSS TO BE 100% "OUT OF LIMITS" IAW SRM 53-00-51 DETAIL III. REMOVED CORRODED FLOOR SUPPORT STA 1640 -1661 RBL 54 IAW SRM 51-40-02. LOCATED, DRILLED, INSTALLED NEW FLOOR SUPPORT STA 1640 - 1661 RBL 54 IAW SRM 51-40-02, DOCUMENT 146N5230, SRM 51-40-02.