As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
MAIN CABIN. TOP OF FLOOR STRUCTURE STA 991.5 - 994.5, LBL32, 2 AREAS OF CORROSION. GROUNDED - YES. REMOVED CORROSION WITH 100% LOSS. FOUND OUT OF LIMITS IAW B737-800 SRM 53-70-51. REMOVED ANGLE IAW B737 800 SRM 51-40-02. LOCATED AND DRILLED NEW ANGLE IAW BAC DWG 147A5700. ALL OTHER WORK TO BE ACCOMPLISHED ON ASA CARD# G2083048