What was found
CORROSION ON FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY BS 400 - 420 RBL23. EVALUATED FLOOR TO SIDEWALL SUPPORT AT FWD CARGO BAY LOC BTW BS400 - BS420; RBL 23; BS 400+11. MEASURES= L= 1'; W=700'; D= 0.010'; ORIGINAL MATERIAL THICKNESS=0.040'; MATERIAL LOSS=0.010'; REMAINING THICKNESS=0.030'. FOUND OUT OF LIMITS. IAW SRM 53-00-53-1A-2 ALLOWABLE DAMAGE 2; STEP 4.A(2)(A). REMOVED FLOOR TO SIDEWALL SUPPORT IAW. SRM 51-40-02-0G-0. FABRICATED NEW FCB FLOOR TO SIDEWALL SUPPORT. LOCATED DRILLED AND APPLIED A CHEMICAL CONVERSION COATING IAW SRM 51-40-05 SRM 53-30-53-0I-2 AND SRM 51-20-01. APPLIED PRIMER IAW SOPM 20-44-04. INSTALLED IAW SRM 51-40-02 AND DWG # 143A7500.