As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FUSELAGE FRAME, SKIN AND SURROUNDING STRUCTURE CORRODED STATION 227.8 FROM LBL-12 TO RBL-12 (BILGE). REMOVED CORROSION FROM HORIZONTAL CHORD, FOUND TO BE WITHIN LIMITS, AND FOUND INTERCOSTAL TO BE OUT OF LIMITS. CLEANED AREA AND INSTALLED NEW INTERCOSTAL PER B737 SRM 51-10-2 AND 51-4.