As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND CORROSION AFT OF AFT CARGO BAY SKIN PANEL AT LAV VENT DUCT BASE BETWEEN BS 907 & 927, S-21L & S-22L. FABRICATED AND INSTALLED REPAIR PARTS AT LT FUSELAGE SKIN BETWEEN BS 907 & 927 BETWEEN S-21L & S-22L IAW SRM 51-40-02-0G-0 AND SRM 53-70-01-2R-3.