As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED FOR HEAVY MAINTENANCE. INTERCOSTAL IS CORRODED AT STATION 1285-1305 AT RIGHT BUTT LINE 4. REMOVED INTERCOSTAL AND REMOVED CORRODED SECTION .015 MATERIAL LOSS. FOUND TO BE OUT OF LIMITS IN ACCORDANCE WITH SRM 53-00-04. INSTALLED NEW INTERCOSTAL IN ACCORDANCE WITH SRM 51-40-02 PARAGRAPH 7.