As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-4 CHECK, INSPECTION REPORTED INTERCOSTAL BETWEEN STA. 927 AND STA. 947.5 ON RT. SIDE OF AIRCRAFT CENTERLINE CORRODED. REMOVED CORROSION AND INTERCOSTAL PER SRM 51-30-02. FOUND CORROSION TO BE OUT OF LIMITS PER SRM 51-10-06. FABRICATED AND INSTALLED REPLACEMENT INTERCOSTAL AND SHIM PER EA 53-737-198 AND SRM 51-30-02.