As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION FOUND @ AFT CARGO COMPT INTERCOSTAL STA 1400-1420 STR 29R-30 FOUND CORR ON INTERCOSTAL IN AFT CARGO STA 1400-1420 STR 29R-30 TO BE OUT OF LIMITS IAW SRM 53-00-04-1A. REMOVED INTERCOSTAL IAW SRM 51-40-02. FABRICATED AND INTALLED NEW INTERCOSTAL IAW DWG 146N5425 REV F AND 146N5399 REV B.