As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
***CORROSION*** ON FLOOR TO SIDEWALL SUPPORT AT AFT CARGO BAY BS727 BS767 RBL21 WL157. ORIGINAL AFT CARGO BAY FLOOR SIDEWALL SUPPORT; BS727 BS767 FOUND TO BE OUT OF LIMITS. REMOVED ORIGINAL; LOCATED & DRILLED NEW PART; AND INSTALLED PER: SRM 5140020G0; BOEING DRAWING: 146A7500; & SRM 5140050G0.