What was found
***CORROSION*** ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS827 - BS727 LBL21 WL158. REPLACED FLOOR TO SIDEWALL SUPPORT AT ACB BS727 - BS 847 LBL 21 WL 158 IAW SRM 51-40-02-0G-0 AND DRAWING # 146A7502 P/N 146A7502-3 DUE TO REMOVED CORROSION ON MULTPLE AREA ON FLOOR TO SIDEWALL SUPPORT AT ACB BS 727 - BS 827 LBL 21 WL 158, AREA 40" X 2" MAX MAT. LOSS 0.027" ORIGINAL THICKNESS 0.040", FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2 DETAIL 4.A.(2) FIG. 103. 54861U,