What was found
DURING M-CHECK, FOUND MAIN CABIN STA 237, RBL 1 TO RBL 20 FLOOR SUPPORT HAS CORROSION. REMOVED CORROSION 237, RBL 1 TO RBL 20 FLOOR SUPPORT OUT OF LIMITS IAW SRM 53-01, FIG 1. REMOVED FLOOR SUPPORT IAW SRM 51-30-2. FABRICATED FLOOR SUPPORT IAW SRM 53-13-1, FIG 11 51-10-4 AND 51-30-2 TREATED AND PRIMED INSTALLED IAW SRM 51-30-5 LOCATED AND DRILLED HOLES IN FLOOR SUPPORT FOR FLOOR PANEL IAW SRM 51-10-4.