As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BS 520 LBL 33-47 FLOORBEAM FOUND CORROSION AS MARKED. CORROSION BLEND OUT 0.051" BY 1.5" BY 2" EXCEED SRM 53-10-01 FIG 1 LIMITS, AND U/D BS 520 FLOORBEAM UPPER CHORD REPAIRED AS PER HX RS NR R53-25-35537 REFER NRC NR IB70247 FOR WORKING DETAIL AND REF UPS EO NR B747-5310-24843-A.