As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INTERCOSTAL STA 851-870 LONG 27L IS CORRODED AND BUBBLED ON LONGERON. REMOVED INTERCOSTAL AND FOUND TO BE OUT OF LIMITS IAW DC-9 SRM 53-01 FIG 1. FABBED NEW INTERCOSTAL 18 1/8X5 USING 7075-0.050 IAW SRM 51-10-2 AND 53-11 FIG 3A. HEAT TREATED IAW DC-9 SRM 51-10-2A. TREATED AND PRIMED IAW SRM 51-10-3. INSTALLED INTERCOSTAL IAW SRM 51-30-2.