As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFT CABIN FLOOR EDGE SUPPORT BEAM HAS CORROSION AROUND MOUNT HOLE APPROX 10" FWD OF FR79 AND 12" OUTBOARD OF LBL 43.5. SUMMARY SEE NR FOR ADDITIONAL INFORMATION 001-0583:5300-2016/002 00357 REMOVED AND REPLACED FLOOR SILL REF A220 ASRP 51-77-00- 00AAA-028A-A. (LP# 1024432)