As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT PIT STA 767; RBL23; FRAME TO INTERCOSTAL CLIP GUSSET; CORROSION; MRK'D. / REMOVED CORROSION IAW B737-800 SRM 51-40-02-0G-0. VERIFIED MATERIAL LOSS AS GREATER THAN 50%; FOUND TO BE OUT OF LIMITS IAW B737-800 SRM 53-60-15-1A-1; FIG 103; D. REMOVED AND REPLACED GUSSET P/N 146A8125-39 A-TAG A48257 IAW B737-800 SRM 51-40-02-0G-0 AND BOEING DWG 146A0081 REV - A48257 AAR TOOL # 36644 DUE 09-26-18