As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C CHECK, FOUND INTERCOSTAL STA 813 - 832 27L HAS CORROSION. REMOVED INTERCOSTAL AND FOUND IT TO BE OUT OF LIMITS IAW DC-9 SRM 53-01 FIG 1. FABBED NEW INTERCOASTAL 18.5 X 5 USING 7075-0-.040 IAW DC-9 SRM 51-10-3. HEAT TREATED IAW DC-9 SRM 51-10-2A. TREATED AND PRIMED IAW SRM 51-10-3. INSTALLED INTERCOASTAL IAW 51-30-2.