As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO INTERCOSTAL CORRODED STA 727A TO 727B LBL 20. GROUNDED - YES. REMOVED CORROSION ON INTERCOSTAL STA 727A-727B AND FOUND TO BE OUT OF LIMITS I.A.W. B737-800 SRM 53-00-53-1A-2. REMOVED AND REPLACED INTERCOSTAL I.A.W. B737-800 SRM 51-40-02-0G-0W=1" O=.032" R=0.00" L=3" D=.082".