As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CARGO BAY BETWEEN STA 727B AND 727D R/H Z ANGLE IS CORRODED TOP SURFACE AS MARKED / REMOVED CORROSION I/A/W B737 SRM 51-10-02-0G-0. CHECKED LIMITS. ORIGINAL .040; LOSS .009 REMAINING .031 FOUND TO BE OUT OF LIMITS PER SRM 53-00-53-1A-2 FIGURE 103D. REMOVED AND REPLACED WITH A NEW Z ANGLE BS727-BS767 R/H ON NRC 38837/1600/0018; DEFECT # X884264 P/N 146A7502-2