As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION LOWER SILL WEB LOCATED BTW BS 847 TO BS 867 AT LEVEL STR 25R AND RBL 21 AT AFT CARGO COMPARTMENT WL=155.5 / REPLACED LOWER SILL (SHIELD) LOCATED BTW BS 847 TO BS 867 AT LEVEL STR 25R AND RBL 21 AT AFT CARGO COMPARTMENT AND FASTENERS IAW B737-700 SRM 51-40-02 AND DRAWING # 146A0081 REV A