What was found
PASSENGER CABIN FLOOR STRUCTURE STA 1661 TO 1681 RBL 54. FLOOR SUPPORT BEAM CORRODED. REMOVED CORROSION IN PASSENGER CABIN FLOOR STRUCTURE STA 1661 - 1681 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 1661 - 1681 RBL 54 IAW SRM 51-40-02. LOCATED, DRILLED, + INSTALLED NEW FLOOR SUPPORT STA 1661 - 1681 RBL 54 IAW SRM 51-40-02, DOCUMENT 146N5230 REV A, SRM 51-40-02.