What was found
CORROSION FOUND ALONG LT SIDE OF FWD CARGO BAY FLOOR TO SIDEWALL SUPPORT, WL 156, BS 500D+9 - 520. R & R THE FLOOR TO SIDEWALL SUPPORT, BS 396 - 500I & SPLICES, LBL 23, WL 153 IAW SRM 51-40-02, DWG 143A7501, REV -, SRM 53-00-53-2R-6, REPAIR 6, & TASK M-22-153-01550. DURING INSPECTION, LT FLOOR SIDEWALL SUPPORT, BS 396 - 500I, WL 156, MULTIPLE DEFECTS FOUND, UNDERDRIVEN RIVETS, MISMATCH HOLES, ANGELED BUCKTAILS, BUCKTAIL DRIVEN INSIDE INTERCOSTAL HOLE CAUSED A CRACK, DAMAGED SPLICE PLATE, DAMAGE NUT PLATE SEPRATIONS. REPAIRED MULTIPLE DEFECTS IAW SRM 51-40-02-0G-0. AFTER CLEANING & FURTHER INSPECTION, NO CRACK HAS BEEN FOUND ON INTERCOSTAL IAW SOPM 20-30-03, & SRM 51-00-06. R & R THE SPLICE PLATE IAW SRM 51-40-02, AND TASK M-22-153-01550 BONDING NUT PLATE INSTALLED IAW DWG 146A7502. HOLE THAT HAD NO MATCH WITH A PILOT DRILL WAS BROUGHT BACK TO ITS ORIGINAL SIZE 3/16 IAW SRM 51-40-02-0G-0.