As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FWD CABIN FLOORBEAM AT FR 20, -Y765 CORRODED. BLENDED CORROSION FOUND TO BE OUT OF LIMITS. AREA IS 4 INCHES LONG X 1.3" WIDE MAX MAT. LOSS IS .100" DEPTH GAGE #TR17594. REMOVED FASTENERS AND FLOORBEAM AT FR12-FR24 -Y765. RECEIVED NEW FLOORBEAM AND INSTALLED BRACKETS & FLOORBEAM IAW SRM 51-42-11 AND SRM 53-00-15 FIG 101.