As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING A HEAVY MX INSP EVENT, THE FUSELAGE SKIN WAS FOUND BULGED AT STA 1460 BETWEEN STRINGERS 27L & 30L. DEFECT WAS FOUND TO BE CORROSION ON THE STRINGERS AND INTERCOSTAL. R & R STRINGERS, FABRICATED INTERCOSTAL AND INSTALLED IAW SRM. ITEM WAS RETURNED TO SERVICE.