As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION ON SEVERAL AREAS ON FLOOR BEAM STA 986.5 STARTS FROM L EFT THRU RIGHT SIDE IN AFT CABIN (REF. AAR NR 9917112). REPAIRED FLOOR BEAM BS 986.5 IAW B737-800 SRM 53-70-51-2R REP 4 SEC 47. (WORK ACCOMPLISHED BY V916729 AND AAR QC V895387).