As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** ACB; STA 787; ON UPPER FLANGE OF FRAME BELOW FLOOR SUPPORT; RBL4; APPROX.. WL 154. / REMOVED CORROSION ON STA 787 FRAME 1' X .4' ALONG EDGE OF INNER CHORD. ORIGINAL THICKNESS OF .063 WITH .059 MATERIAL REMAING AS PER SRM 53-00-07-1A-1. REPAIRED FRAME ON UPPER FLANGE STA 787 RBL 4 APPROX WL 154 AS PER ER 18-02560 REV IR & EA 1-753-32700 REV IR