What was found
LEFT WING, CORROSION (LOST MATERIAL) LOCATED ON CLOSURE RIB 27 WBL 658.17 NEXT TO THE OUTER WING FRONT SPAR (EXTERNAL SKIN). INSTALLED NEW PART ON LT WING CLOSURE RIB 27 WBL 658.17 IAW SRM 51-40-02-0G-0. REMOVED CORROSION ON LT WING CLOSURE RIB 27 WBL 658.17 IAW SRM 57-30-02-1A-1, FOUND TO BE OUT OF LIMITS MATERIAL LOST MORE THAN 0.10 IN IAW SRM 57-30-02-1A-1 FIG A. REMOVED LT WING CLOSURE RIB 27 WBL 658.17 IAW SRM 51-40-02-OG-0, RECEIVED NEW PART DWG 737- 8510 PL, LOCATED AND DRILL NEW PART ON LEFT WING RIB 27 WBL 658. 17 NEXT TO OUTER WING FRONT SPAR IAW SRM 51-40-05-0G-0, INSTALLED NEW PART ON LT WING CLOSURE RIB 27 WBL 658.17 IAW SRM 51-40-02-0G-0,FINAL INTALLATION OF RIB 27 ON LT WING WBL 658.17 NEXT TO THE OUTER WING FRONT SPAR IAW SRM 51 -40-02-0G-0 STEP 5 & 7, DWG 737-8510 REV D.