As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE LBL 25.5 KEELSON STRINGER WAS FOUND WITH A 1.5 INCH LONG CRACK RUNNING FWD-AFT IN THE HORIZONTAL FLANGE AT FS 1357. THE STRINGER WAS CUT AT FS 1357 AND THE AFT END REMOVED. A NEW AFT SECTION WAS FABRICATED AND SPLICED IN PER ER/A 368337-14, REV A.