As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CORROSION DISCOVERED ON FLOORBEAM AT STA 920, LOCATED AT OUTBOARD END OF THE BEAM LOWER RIGHT FLANGE. CORROSION IS BEYOND 20 PERCENT OF MATERIAL THICKNESS. REPAIRED BEAM BY CUTTING AND REMOVING AFFECTED AREA AND SPLICING IN NEW SECTION IAW REA D853-51248-MR.