What was found
CORROSION ON AFT CARGO BAY FLOOR TO SIDEWALL SUPPORT AT LBL 21 BS 727E+9; BS 727E+10; BS 747+14; BS 767+3; BS 767+6; BS 787+6; BS 787+10; BS 787+14. REMOVED CORROSION ON FLOOR TO SIDEWALL SUPPORT. THE LOWEST REMAINING THICKNESS 0.032' ON BLENDED AREA L=2.2'X W=1'XD=0.008 ORIG. MAT. THK.=.040' FOUND TO BE OUT OF LIMITS IAW SRM 53-00-53-1A-2 STEP 4A FIG. 103 DETAIL D, SRM 53-60-53-01-2. INSTALLED SIDE PLATE FROM BS 727E - BS747 IAW SRM 53-00-53-2R-6 AND SRM 51-40-02;; [12] VERIFIED ITEM 11 CORRECTIVE ACTIONS.; [13] INSTALLED NEW FLOOR TO SIDEWALL AT AFT BS 727 TO 847 RBL 21 . IAW 737-700 SRM 51-40-02-0G-0; DWG 146A7500.