What was found
CORROSION FCB L/H FLOOR TO SIDEWALL SUPPORT FROM STA 400+2 TO STA 500B+13; LBL 25; WL 156. AFTER THE REWORK PIECE SIDEWALL SUPPORT IS OUT OF LIMITS IAW SRM 53-00-53-1A-2 IT HAS TO BE REPLACED IAW SRM 51-10-02; BLENDED AREAS AFT OF BS 480+6 MEASUSURE:480+11; 1.7'L X 0.9'W. REMAINING 0.038'.FABRICATED; LOCATED AND DRILLED REPAIR SPLICE LOCATED AT BS 480+8 LBL25; WL156; IAW SRM 53-00-53-2R-5; SRM 51-40-05-0G-0. LOCATED AND DRILLED NEW L/H FLOOR TO SIDEWALL AT BS 396 TO BS 480+8; LBL 25; WL 156 IAW SRM 51-40-05-0G-0 AND DWG 143A7500.APPLIED CHEMICAL CONVERSION COATING AND PRIMER AT ALL REWORKED AREAS FROM BS480+11 TO BS500D+13 IAW SRM 53-00-53-1A-2 STEP 2E INSTALLED SPLICE REPAIR LOCATED AT BS 480+8 LBL25; WL156; IAW SRM 53-00-53-2R-5; INSTALLED BONDED NUT PLATES IAW BOEING DWG 143A7501 REV:A;