As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DISCREPANCY: STA 500C TO 500D INTERCOSTAL AT S-26L CORRODED AROUND NUT PLATES. CORRECTION: STA 500C TO 500D INTERCOSTAL AT S-26L REPLACED IAW DWG NR 69-41757 AND B737-300 SRM 51-40-02 REV 118 WITH MADE REPAIR PART IAW SRM REV 119 CH 51-30-01.